Reproductive endocrinology Treatment of gonadotropin de fi ciency during the fi rst year of life : long-term observation and outcome in fi ve boys

Ella Kohva, Hanna Huopio, Johanna Hietamäki, Matti Hero, Päivi J. Miettinen, and Taneli Raivio* Helsinki University Hospital, New Children’s Hospital, Pediatric Research Center, Helsinki 00014, Finland Kuopio University Hospital, University of Eastern Finland, Kuopio 70029, Finland Department of Physiology, Medicum Unit, and Translational Stem Cell Biology and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki 00014, Finland

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