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| Perspectives On Sexuality | |
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| Why Study Human Sexuality? | |
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| Researchers Take Diverse Approaches to the Study of Sexuality | |
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| Sex-Education Faces Significant Obstacles | |
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| Women's Bodies | |
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| A Woman's Vulva Includes Her Mons, Labia, Vaginal Opening, and Clitoris | |
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| The Vagina Is the Outermost Portion of the Female Reproductive Tract | |
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| The Anus Can Also Be a Sex Organ | |
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| The Uterus Serves a Double Duty | |
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| The Oviducts Are the Site of Fertilization | |
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| The Ovaries Produce Ova and Sex Hormones | |
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| Menstruation Is a Biological Process with Cultural and Practical Aspects | |
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| Menstrual Problems Are Common But Treatable | |
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| Sex Steroids Have Other Effects | |
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| The Breasts Have Both Erotic and Reproductive Significance | |
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| Men's Bodies | |
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| The Male External Genitalia Are the Penis and Scrotum | |
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| Penile Erection Involves Nerves, Blood, and Chemistry | |
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| The Testicles Produce Sperm and Sex Hormones | |
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| Nudity Is Culturally Regulated | |
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| Sex And Gender Differences | |
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| Genes and Hormones Guide Sex Development | |
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| Sex Development May Go Awry | |
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| Gender Is a Central Aspect of Personhood | |
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| Biological Factors Influence Gender | |
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| Experiments Demonstrate a Role for Sex Hormones | |
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| Life Experiences Influence Gender | |
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| Gender Development Involves Complex Interactions | |
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| Transgendered People Cross Society's Deepest Divide | |
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| Attraction, Arousal, And Response | |
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| Sexual Attraction: It Takes Two | |
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| Attractiveness Involves Senses Besides Vision | |
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| Sexual Arousal Has Multiple Roots | |
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| Sexual Arousal Follows a Response Cycle | |
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| Sexual Behavior | |
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| People Have Differing Ideas about What Constitutes Sexual Behavior | |
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| Masturbation Is a Very Common Form of Sexual Expression | |
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| The Kiss Represents True Love—Sometimes | |
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| 'Petting' and 'Fondling' Refer to a Variety of Noncoital Behaviors | |
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| Oral Sex Is Increasingly Popular | |
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| Most Sexual Encounters Include Coitus | |
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| Anal Sex May Be a Part of Either Heterosexual or Male Homosexual Behavior | |
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| Men and Women May Have Different Preferences for Sexual Encounters | |
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| Sex Toys Are Used to Enhance Sexual Pleasure | |
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| Some Cultures Have Discussed Sexual Behavior More Openly than Others | |
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| Many Disabled People Have Active Sex Lives� | |
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| Sexual Relationships | |
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| Sexual Relationships Are Motivated by Many Factors | |
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| Religion and the Law Influence Sexual Morality | |
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| Moral Judgments about Sex Depend on Its Context | |
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| Americans' Attitudes Have Changed over Time | |
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| Casual Sex Has More Appeal to Men than to Women | |
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| Dating Relationships Are Often Short-Lived | |
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| Love Cements Many Sexual Relationships | |
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| Unrequited Love Is Painful for Both Parties | |
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| Life Experiences Mold Our Sexual Relationships | |
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| Couples in Relationships Resemble Each Other | |
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| Communication Is a Key Factor in the Success of Relationships | |
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| Love, Jealousy, and Infidelity Are Intertwined | |
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| Extra-Pair Relationships Have Many Styles and Motivations� | |
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| Fertility, Pregnancy, And Childbirth | |
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| Pregnancy and Childbirth Raise Major Health Concerns | |
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| Pregnancy Is Confirmed by Hormonal Tests | |
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| The Likelihood of Achieving Pregnancy Can Be Maximized by Tracking Ovulation | |
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| Infertility Can Result from Problems in the Woman or in the Man | |
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| Many Embryos Do Not Survive | |
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| Pregnancy Is Conventionally Divided into Three Trimesters | |
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| The Second Trimester Is the Easiest | |
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| The Third Trimester Is a Time of Preparation | |
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| Labor Has Three Stages | |
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| The Period after Birth Places Many Demands on Parents | |
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| Breast-Feeding Is the Preferred Method of Nourishing the Infant� | |
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| Contraception And Abortion | |
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| Birth Control Has a Long History | |
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| Different Users Have Different Contraceptive Needs | |
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| Physical Methods Block Sperm Transport | |
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| Hormone-Based Methods Are Easy to Use | |
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| Hormones Can Be Administered by Non-Oral Routes | |
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| Behavioral Methods Are Demanding | |
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| There Are Contraceptive Options after Unprotected Coitus | |
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| Sterilization Is Highly Reliable | |
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| Disabled Persons Have Special Contraceptive Needs | |
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| Several Safe Abortion Procedures Are Available | |
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| Americans Are Divided on Abortion, but Most Favor Restricted Availability | |
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| Sexuality Across The Lifespan: From Birth To Adolescence | |
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| Is Childhood a Period of Sexual Innocence? | |
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| Some Children Have Sexual Contact with Adults | |
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| Preadolescence May Be Marked by an Increase in Sexual Interest | |
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| Adolescence Is a Time of Sexual Exploration | |
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| Teen Sexuality Is Central to Identity Development� | |
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| Sexuality Across The Lifespan: Adulthood | |
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| In Young Adulthood, Conflicting Demands Moderate Sexual Expression | |
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| Cohabitation Is an Increasingly Prevalent Lifestyle | |
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| Marriage Takes Diverse Forms | |
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| The Institution of Marriage Is Evolving | |
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| Most Married Couples Are Satisfied with Their Sex Lives | |
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| Many Factors Bring Relationships to an End | |
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| Marital Disruption Can Have Negative and Positive Consequences | |
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| Menopause Marks Women's Transition to Infertility | |
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| Men's Fertility Declines Gradually with Age | |
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| The Sex Lives of Old People Have Traditionally Been Ignored� | |
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| Sexual Orientation | |
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| There Is a Spectrum of Sexual Orientations | |
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| Sexual Orientation Is Not an Isolated Trait | |
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| Diverse Theories Attempt to Explain Sexual Orientation | |
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| The Gay Community Has Struggled for Equal Rights | |
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| Growing Up Gay Presents Challenges | |
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| Gay Sex Has Its Own Style | |
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| Changing Sexual Orientation Is Difficult or Impossible | |
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| Homophobia Has Multiple Roots | |
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| Bisexuals Are Caught between Two Worlds� | |
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| Atypical Sexuality | |
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| Sexual Variety Is the Spice of Life | |
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| 'Paraphilia' Is the Psychiatric Term for Problematic Sexual Desire or Behavior | |
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| Some Adults Desire Sexual Contact with Children | |
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| Sex Offenders Do Not Necessarily Repeat Their Offenses | |
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| There Are Numerous Theories of Paraphilia | |
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| Theories of Causation Have Suggested a Variety of Treatments� | |
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| Sexual Disorders | |
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| The Prevalence of Sexual Disorders Is Controversial | |
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| Erectile Dysfunction Has Many Causes and Treatments | |
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| Premature Ejaculation Is Men's Number One Sex Problem | |
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| Delayed Ejaculation Can Be a Side Effect of Several Drugs | |
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| Sexual Pain Is Uncommon in Men | |
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| Female Sexual Arousal Disorder Involves Insufficient Genital Response | |
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| There Are Many Reasons for Sexual Pain in Women | |
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| Difficulty in Reaching Orgasm Is Very Common among Women | |
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| Too Much Interest in Sex Can Cause Problems | |
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| Lack of Desire for Sex Is Not Necessarily a Problem� | |
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| Sexually Transmitted Diseases | |
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| Venereal Diseases Were Seen as Punishment for Sexual License | |
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| STDs Are Still a Major Problem in the United States | |
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| Insects Are More of an Annoyance than a Danger | |
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| Trichomoniasis Is Caused by a Protozoan | |
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| Bacterial STDs Can Usually Be Treated with Antibiotics | |
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| Gonorrhea Can Lead to Infertility | |
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| Chlamydia Causes a Common Infection with Serious Complications | |
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| The Status of Bacterial Vaginosis as an STD Is Uncertain | |
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| Urethritis Can Be Caused by a Variety of Organisms | |
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| Viral STDs Can Be Dangerous and Hard to Treat | |
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| Molluscum Contagiosum Is a Self-Limiting Condition | |
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| Genital Herpes Is a Lifelong but Not Life-Threatening Infection | |
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| Human Papillomaviruses Can Cause Genital Warts—and Cancer | |
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| Hepatitis Viruses Can Be Sexually Transmitted | |
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| AIDS Is Caused by the Human Immunodeficiency Virus | |
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| There Are Several Ways to Reduce the Likelihood of STD Transmission | |
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| Not Everything Is an STD� | |
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| Sexual Assault, Harassment, And Partner Violence | |
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| What Is Rape? | |
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| College Rapes Are Common | |
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| Rape Can Have Severe Effects on the Victim | |
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| Rape Laws Have Become More Protective of Victims | |
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| Why Do Men Rape? | |
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| Intervention Programs Are of Uncertain Value | |
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| Sexual Harassment Occurs in Many Environments | |
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| There Are Three Kinds of Stalkers | |
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| Intimate Partner Violence Is a Crime with Many Names� | |
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| Sex As A Commodity | |
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| Can Money Buy You Love? | |
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| There Is a Hierarchy of Prostitution | |
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| Good Pay Is the Main Motive for Prostitution | |
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| Phone Sex Blends Prostitution and Pornography | |
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| Pornography Has Always Been Part of Human Culture | |
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| There Are Conflicting Perspectives on the Value or Harm of Pornography | |
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| Sex Is Part of the Mass Media | |