title: Klinefelter syndrome: fertility considerations and gaps in knowledge.
authors.affiliation: Division of Endocrinology, Nationwide Children's Hospital, 700 Children's Dr, Columbus, USA.
authors.forename: Leena
authors.initials: L
authors.lastname: Nahata
authors.affiliation: Department of Urology, Boston Children's Hospital, Boston, MA, USA.
authors.forename: Richard N
authors.initials: RN
authors.lastname: Yu
authors.affiliation: Division of Endocrinology, Boston Children's Hospital, Boston, MA, USA.
authors.forename: Laurie E
authors.initials: LE
authors.lastname: Cohen