Targeted Disruption of ALK Reveals a Potential Role in Hypogonadotropic Hypogonadism Witek, Barbara ; El Wakil, Abeer ; Nord, Christoffer ; Ahlgren, Ulf ; Eriksson, Maria ; Vernersson-Lindahl, Emma ; Helland, Åslaug ; Alexeyev, Oleg A. ; Hallberg, Bengt ; Palmer, Ruth H. Abstract Publication: PLoS ONE Pub Date: May 2015 DOI: 10.1371/journal.pone.0123542 Bibcode: 2015PLoSO..1023542W