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Sexual Behavior
Risk-Taking
Male Homosexuality
Questionnaires
Attitude to Health
Condoms
Patient Acceptance of Health Care
HIV Infections
Sexually Transmitted Diseases
Acquired Immunodeficiency Syndrome
Great Britain
London
England
Sexual Partners
Young Adult
Risk Factors
Prevalence
Health Surveys
Cross-Sectional Studies
Contact Tracing
Co-Publications
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38
27
26
25
14
13
11
9
8
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