Li, Pi-Hsueh Shirley2015-05-122015-05-121975https://scholarworks.montana.edu/handle/1/5608enProgesteroneHormonesCowsThe effect of a progesterone implant and GnRH infusion on blood LH and progesterone levels in postpartum cowsThesisCopyright 1975 by Pi-Hsueh Shirley Li