1. Relationship between ageing and the immune system;Kay;Prog. Allergy,1981
2. Cellular immunosenescence;Leech;Gerontology,1980
3. Histology of the prostate in elderly men. A study in an autopsy series;Harbitz;Acta Pathol. Microbiol. Scand.,1972
4. Effects of ageing on immunoglobulins;Radl,1982
5. Immunoglobulin patterns in humans over 95 years of age;Radl;Clin. Exp. Immunol.,1975