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WikiPedia: Fingering http://womenshealth.about.com/cs/sexuality/a/clito... http://www.sciencedirect.com/science/article/pii/S... //www.ncbi.nlm.nih.gov/pubmed/16145367 //www.ncbi.nlm.nih.gov/pubmed/18486835 //dx.doi.org/10.1016%2Fj.ogc.2008.03.006 //dx.doi.org/10.1097%2F01.ju.0000173639.38898.cd http://news.bbc.co.uk/2/hi/health/5013866.stm https://books.google.com/?id=5f8mQx7ULs4C&pg=PA118...