1. Ventilatory muscle endurance training in normal subjects and patients with cystic fibrosis;Keens;Am Rev Resp Dis,1977
2. Cystic fibrosis;Wood;Am Rev Resp Dis,1976
3. Cystic fribrosis;Shwachman,1977
4. A test for concentration of electrolytes in sweat in cystic fibrosis of the pancreas utilising pilocarpine by iontophoresis;Gibson;Pediatrics,1959
5. Schwimmen mit kleinen Leuten (swimming with little people);Lewin,1973