T. A. Edwards, S. MacGregor, and K. F. Lechtenberg, “Effects of Single Administration of Half-dose Injectable Doramectin, Full-dose Injectable Doramectin, or Fenthion on Fecal Egg Counts, Growth Performance and Carcass Characteristics in Cattle: carcass quality”, Bov. pract., vol. 35, no. 1, pp. 85–89, Jan. 2001.