1. Immunoglobulins after surgical bursectomy in chickens;Arnason;J. Immunol.,1967
2. Effect of thymectomy and bursectomy en the survival of skin homografts in chickens;Aspinall;J. Immunol.,1963
3. Cellular immune competence of spleen, bursa and thymus cells;Cain;Nature,1967
4. Lymphocyte fine structure in the bursa of Fabricius, the thymus and the germinal centers;Clawson;Lab. Invest.,1967
5. A mammalian equivalent to the avian bursa of Fabricius;Cooper;Lancet,1966a