Authors: J R Egerton; J Birnbaum; L S Blair; J C Chabala; J Conroy; M H Fisher; H Mrozik; D A Ostlind; C A Wilkins; W C Campbell Journal: Br Vet J Date: 1980 Jan-Feb
Authors: A R Rivas-Alcalá; B M Greene; H R Taylor; A Domíguez-Vázquez; A M Ruvalcaba-Macías; C Lugo-Pfeiffer; C D Mackenzie; F Beltrán Journal: Lancet Date: 1981-09-05 Impact factor: 79.321