1. Lymphocytopoiesis in the bursa of Fabricius;Ackerman;Am. J. Anat.,1959
2. Studies on lymphocyte production;Andreasen;Investigations on nucleic acid turnover in lymphoid organs. Acta Physiol. Scand.,1945
3. Experimental analysis of the origin of cell types in the development of the mouse thymus;Auerbach;Development. Biol.,1961
4. Axelrad , A. A. H. C. Van Der Gaag 1962 Susceptibility to lymphoma induction by Gross's passage A virus in C3Hf/Bi mice of different ages; relation to thymus cell multiplication and differentiation J. Natl. Cancer Inst