1. The natural history of disease;Ryle, J.A.
2. Clinical examination;Macloed, J.G.,1973
3. Hutchinson's clinical methods;Bomford, R.; Mason, S.; Swash, M.,1975
4. A plain man's guide to the management of migraine;Blau, J.N.;Br Med J,1982
5. Accepted 63July,1982