Thirty-seven candidate genes for polycystic ovary syndrome: Strongest evidence for linkage is follistatin. - Urbanek,M.; Legro,R.S.; Driscoll,D.A.; Azziz,R.; Ehrmann,D.A.; Norman,R.J.; Strauss,J.F.; Spielman,R.S.; Dunaif,A. (Proc Natl Acad Sci, 1999)