Gonadotropic cells of the rainbow trout pituitary during the annual cycle. Ultrastructure and hormone content J. PEUTE, H. J. Th. GOOS, Marielle G. A DE BRUYN and P. G. W. J. VAN OORDTAnn. Biol. anim. Bioch. Biophys., 18 4 (1978) 905-910DOI: https://doi.org/10.1051/rnd:19780523