Mutations in PROP1 cause familial combined pituitary hormone deficiency - Wu, W; Cogan, J D; Pfaffle, R W; Dasen, J S; Frisch, H; O’Connell, S M; Flynn, S E; Brown, M R; Mullis, P E; Parks, J S; Phillips, J A; Rosenfeld, M G (Nat Genet, 1998)