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You searched for: Author/Creator Engler, Birgit- Engler, Birgit [remove] 2
- AIDS (Disease) -- Periodicals 2
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- Acquired Immunodeficiency Syndrome 1
- Chlamydia trachomatis -- sexually transmitted infections -- young people -- gender differences -- sexual histories -- high prevalence -- cross-sectional study 1
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- Sexually transmitted diseases -- Periodicals 1