1. Peroral solid dosage forms with prolonged action;Ritschel, W.A.,1973
2. Development of a sustained release aspirin tablet;Wiseman, E.H.; Federici, N.J.;J Pharm Sci,1968
3. Elementary osmotic pump;Theeuwes, F.;J Pharm Sci,1975
4. Oesophageal obstruction and ulceration caused by oral potassium therapy;Pemberton, J.;Br Heart J,1970
5. Where do all the tablets go?;Evans, K.T.; Roberts, G.M.;Lancet,1976