1. Andrew, W.: Age changes in the vascular architecture and cell content in the spleens of 100 Wistar Institute rats, including comparisons with human material. Amer. J. Anat. 79, 1?74 (1946).
2. Aschoff, L.: Zur normalen und pathologischen Anatomie des Greisenlaters. 4. Die blutbereitenden und blutzerstörenden Organe und ihre Gerüstsubstanzen im Greisenalter. Med. Klin. 33, 1521 (1937).
3. Björkman, S. E.: The splenic circulation, with special reference to the function of the spleen sinus wall. Acta med. scand. 128, Supp. 191, 1?89 (1947).
4. Boggs, G. O.: Peritoneal implants of splenic tissue following rupture of spleen. North. N.Y. med. J. 2, 11 (1945).
5. Buchbinder, J. H., and C. J. Lipkoff: Multiple peritoneal implants following abdominal injury. Surgery 6, 922?934 (1939).