Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleThe ratio of 2nd to 4th digit length: a predictor of sperm numbers and concentrations of testosterone, luteinizing hormone and oestrogen.AuthorsManning JT; Scutt D; Wilson J; Lewis-Jones DIPublicationHuman reproduction (Oxford, England), 1998, Vol 13, Issue 11, p3000ISSN0268-1161Publication typearticleDOI10.1093/humrep/13.11.3000