Dandinarasaiah, Manjunath Diphtheria Re-emergence: Problems Faced by Developing Countries. [electronic resource] - Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India Dec 2013 - 314-8 p. digital Publication Type: Journal Article ISSN: 2231-3796 Standard No.: 10.1007/s12070-012-0518-5 doi