1. DECEMBER 1985
2. Clinical lectures on paralvsis;Sollv, S.;Lancet 1856
3. Smoker's wrinkles: a studv in the epidemiology of "crow's feet.";Daniell, H.W.;Ann Intern Med,1971
4. Textbook of medicine;Cecil, R.L.,1982
5. French's ltndex of differential diagnzosis;Hart, F.D.,1979