> as lemmas

1946 J. F. Fulton Howell's Textbk. Physiol. (ed. 15) liv. 1209 Both the onset and maintenance of lactation require lactogen.

1952 S. J. Folley in A. S. Parkes Marshall's Physiol. Reproduction (ed. 3) II. xx. 558 When first discovered it [sc. an anterior-pituitary protein hormone] was variously named prolactin (Riddle), galactin (Turner) and mammotropin (Lyons). Recent American practice tends to favour the terms lactogen or lactogenic hormone; the name prolactin is adopted in this chapter in accordance with English usage.

1962 Endocrinology LXXI. 218/2 The Raben preparation.., although quite potent as a lactogen in the pseudopregnant rabbit,.. has little activity in the local intradermal pigeon crop assay.

1967 Proc. National Acad. Sci. U.S.A. 58 2307 The recent identification of human placental lactogen (HPL), a polypeptide hormone which shares both biological and immunological properties with pituitary growth hormone (HGH).