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Clinical Oncology (Royal College of Radiologists (Great Britain))|January 1, 1993
Tracheal tumours: could treatment be better?M R HetzelBritish Journal of Hospital Medicine|September 1, 1988
Endoscopic applications of lasers in the bronchial treeM R HetzelBritish Journal of Diseases of the Chest|April 1, 1977
Diurnal variation of asthmaT J Clark, M R HetzelThorax|October 1, 1980
Comparison of normal and asthmatic circadian rhythms in peak expiratory flow rateM R Hetzel, T J ClarkClinical Allergy|November 1, 1977
Comparison of salbutamol Rotahaler with conventional pressurized aerosolM R Hetzel, T J ClarkPageof 6