In vitro stimulation of vitellogenin incorporation into trout oocytes by salmon pituitary extracts C. M. CAMPBELL, Sylvie CHARPENTIER, Micheline HEYDORFF and Gill CAMPBELL Ann. Biol. anim. Bioch. Biophys., 18 4 (1978) 1013-1018 DOI: 10.1051/rnd:19780540