1. Chronic cor pulmonale. Report of an expert committee (Geneva, 1960);WHO, 1960. (Technical Report Series No 213
2. Pathological changes in the lungs associated with cor pulmonale;Gough, J.;Bull NY Acad Med,1965
3. Cor pulmonale in coalworkers';Wells, A.L.;pneumoconiosis. Br Heart J,1954
4. Pulmonary haemodynamics in coalworkers';Ldapp, N.L.; Seaton, A.; Kaplan, K.C.; Hunsaker, M.R.; Morgan, W.K.C.,1971
5. The Pneumoconiosis Field Research of the National Coal Board;Fay, J.W.J.; Rae, S.;Ann Occup Hyg,1959