- Synergistical effects of ovine corticotropin-releasing factor (CRF) and arginine vasopressin (AVP) on the release of pro-opiomelanocortin (POMC) related peptides by pituitary adenoma of a patient with Nelson's syndrome in vitro. Chan, J.S., Gaspar, L., Iguchi, H., Seidah, N.G., Ling, N., Chrétien, M. Clinical and investigative medicine. Médecine clinique et experimentale. (1984)