Comparison of two methods for collecting antibiotic use data on small dairy farms.
Redding LE, Cubas-Delgado F, Sammel MD, Smith G, Galligan DT, Levy MZ, Hennessy S. Comparison of two methods for collecting antibiotic use data on small dairy farms. Prev Vet Med. 2014 Jun 01; 114(3-4):213-22.