title: Factors influencing the evolution of theriogenology.
authors.affiliation: National Agricultural Research Center, Beltsville, Md.
authors.forename: D E
authors.initials: DE
authors.lastname: Bartlett
mesh_terms: D000818:Animals; D005260:Female; D049673:History, 20th Century; D008297:Male; D012098:Reproduction; D013038:Specialization; D014730:Veterinary Medicine / Q000266:history