Dyfyniad APA

Operario, D., Underhill, K., Chuong, C., & Cluver, L. (2011). HIV infection and sexual risk behaviour among youth who have experienced orphanhood: Systematic review and meta-analysis. BioMed Central.

Dyfyniad Arddull Chicago

Operario, D., K. Underhill, C. Chuong, and L. Cluver. HIV Infection and Sexual Risk Behaviour Among Youth Who Have Experienced Orphanhood: Systematic Review and Meta-analysis. BioMed Central, 2011.

Dyfyniad MLA

Operario, D., et al. HIV Infection and Sexual Risk Behaviour Among Youth Who Have Experienced Orphanhood: Systematic Review and Meta-analysis. BioMed Central, 2011.

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