P. D. Schoppee

Schoppee, P. D., Armstrong, J. D., Harvey, R. W., Whitacre, M. D., Felix, A., & Campbell, R. M. (1996). Immunization against growth hormone releasing factor or chronic feed restriction initiated at 3.5 months of age reduces ovarian response to pulsatile administration of gonadotropin-releasing hormone at 6 months of age and delays onset of puberty in heifers. BIOLOGY OF REPRODUCTION, 55(1), 87–98. https://doi.org/10.1095/biolreprod55.1.87

Schoppee, P. D., Armstrong, J. D., Harvey, R. W., Washburn, S. P., Felix, A., & Campbell, R. M. (1995). Endocrine and ovarian responses to exogenous estradiol-17beta in 6-month-old heifers previously immunized against growth hormone-releasing factor. Journal of Animal Science, 73(7), 2071. https://doi.org/10.2527/1995.7372071x