In the first class the chances of error are decidedly reduced by the skilled veterinarian by making careful physical examination and diagnosing clinically these advanced cases, and by the injection of double or triple doses into all recently tested cattle, with the taking of the after-temperature, beginning two hours following the injection and continuing hourly for 20 hours.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
The diagnosis of cancer may be made clinically by noting the simultaneous infection of the lymph glands which surround the primary lesion.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
He then began to take notes on all the morbid appearances that he found in bodies, recognizing very clearly that he must trace out not only the main cause of the disease, but also the subsidiary pathological factors that were at work in the production of the various symptoms of the special case as he had studied it clinically.
"Makers of Modern Medicine"
James J. Walsh