1. WHO. Weekly epidemiological record -2014;89: 389–400. Available: http://www.who.int/wer/2014/wer8936.pdf?ua=1.
2. Classification of leprosy according to immunity. A five-group system;DS Ridley;Int J Lepr Other Mycobact Dis,1966
3. Comparing the clinical and histological diagnosis of leprosy and leprosy reactions in the INFIR cohort of Indian patients with multibacillary leprosy;DNJ Lockwood;PLoS Negl Trop Dis,2012
4. Chemotherapeutic trials in leprosy. 5. A study of methods used in clinical trials in lepromatous leprosy;MF Waters;Int J Lepr Other Mycobact Dis,1967
5. The immunopathology of erythema nodosum leprosum: the role of extravascular complexes;MJ Ridley;Lepr Rev,1983