The effects of proopiomelanocortin deficiency on murine adrenal development and responsiveness to adrenocorticotropin - Coll, A P; Challis, B G; Yeo, GS H; Snell, K; Piper, S J; Halsall, D; Thresher, R R; O'Rahilly, S (Endocrinology, 2004)