1. Maximizing information from the physical exam;Donley,2006
2. Pneumonology;Tully,1994
3. Clinical manifestations of respiratory disorders;Voyer,1997
4. Respiratory medicine of caged birds;Phalen;Vet Clin North Am Exot Anim Pract,2000
5. Acute respiratory distress (ARD) - from anatomy through treatment;Lichtenberger,2007