Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
A definite program of canine prenatal care can provide a needed and appreciated veterinary service, particularly in the small animal specialty practice. Many dog owners wish their animals to have at least one litter of pups. Being very much aware of the intensive prenatal care in the human field, a comparable veterinary service is often sought. The veterinarian should be able to give authoritative and reassuring advice in this area. Many of the thoughts presented here are those acquired in the practice with which i was formerly associated.
Mallo, Gary L.
"Canine Prenatal Care,"
Iowa State University Veterinarian: Vol. 27
, Article 4.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol27/iss2/4