1. Psittacine behavior;Welle;Proc Conf Assoc Avian Vet,1998
2. Understanding and treating the infraorbital sinus and respiratory system;Antinoff;Proc Conf Assoc Avian Vet,2000
3. Respiratory system;Hillyer,1997
4. Emergency medicine;Jenkins,1996
5. Nutritional diseases;Harrison,1986