Visceral gout in caged birds "India's Vultures Fall Prey to a Drug in the Cattle They Feed On", New York Times, Amelia Gentleman, March 28, 2006.
Visceral gout in caged birds "India's Vultures Fall Prey to a Drug in the Cattle They Feed On", New York Times, Amelia Gentleman, ngày 28 tháng 3 năm 2006.