Citation:Rissel C, Heywood W, de Visser RO, Simpson JM, Grulich AE, Badcock PB, et al 2014
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Citation
Rissel C, Heywood W, de Visser RO, Simpson JM, Grulich AE, Badcock PB, et al. First vaginal intercourse and oral sex among a representative sample of Australian adults: the Second Australian Study of Health and Relationships. Sex Health 2014 Nov;11(5):406-15 Available from: http://www.ncbi.nlm.nih.gov/pubmed/25376994.
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