title: Letter: The incidence in Australia of dystocia among calvings involving a Charolais crossbred calf.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D004420:Dystocia / Q000453:epidemiology / Q000662:veterinary*; D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D013045:Species Specificity