H. J. Howard

Howard, H. J., Morbeck, D. E., & Britt, J. H. (1990). Extension of oestrous cycles and prolonged secretion of progesterone in non-pregnant cattle infused continuously with oxytocin. Journal of Reproduction & Fertility, 90(2), 493. https://doi.org/10.1530/jrf.0.0900493

Howard, H. J. (1990). Mechanisms of extended corpus luteum function in dairy cattle treated with human chorionic gonadotropin or infused continuously with oxytocin. Dissertation Abstracts International. B, Sciences and Engineering, 51(2), 607.

Howard, H. J., & Britt, J. H. (1990). Prostaglandin F-2alpha causes regression of an HCG-induced corpus luteum before day 5 of its lifespan in cattle. Journal of Reproduction & Fertility, 90(1), 245. https://doi.org/10.1530/jrf.0.0900245