A. Pines, H. Raafat, K. Plucinski, J. S. Greenfield, M. Solari
Pines A, Raafat H, Plucinski K, Greenfield J S, Solari M.
Antibiotic regimens in severe and acute purulent exacerbations of chronic bronchitis.
Br Med J 1968; 2 :735
doi:10.1136/bmj.2.5607.735