1 - diseases

- 1/2 & 1/2 nails - 100 day cough - 17,20-lyase deficiency - 17-alpha-hydroxylase/17,20-lyase deficiency - 1st degree atrioventricular block - 1st degree AV block - 1st degree burn - 1st degree heart block - 1st disease - 1st metatarsophalangeal joint osteoarthritis