title: Reply: A new method for testing   a hypothesis on a cause of   polycystic ovary syndrome.
authors.forename: Roy
authors.initials: R
authors.lastname: Homburg
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D018811:Maternal Exposure; D011085:Polycystic Ovary Syndrome / Q000209:etiology*; D012107:Research Design; D035781:Siblings