History of the discovery of ANCA (Anti-neutrophil cytoplasmic antibody) 1  In 1982, David Davies, an Australian pathologist observed that 'a subset of patients with focal necrotizing and crescentic glomerulonephritis had circulating antibodies that bound to the cytoplasm of normal neutrophils' (5, 6).
Eagles in Oklahoma . Eagles begin arriving in Oklahoma in November and early December. Their numbers peak in January and February, and most birds have left for their northern breeding grounds by the end of March. Bald eagles are sociable in winter, roosting communally in trees near a food source.
Oklahoma City Zoo Coupons and Free Offers. 1  Coupons for the Oklahoma City Zoo are available from the official Oklahoma City's Adventure District website. 2  The printable coupon is good for one free child's admission with the purchase of an adult admission.