Rayford, P L Radioimmunoassay determination of LH concentration in the serum of female pigs. [electronic resource] - Endocrinology Mar 1971 - 707-13 p. digital Publication Type: Journal Article ISSN: 0013-7227 Standard No.: 10.1210/endo-88-3-707 doi Subjects--Topical Terms: AnimalsCastration