Sivayadevi, P. and Anandan, H. 2018. Retrospective analysis of demographic factors and changing pattern of clinical features of acquired syphilis at a tertiary care center in South India. International Journal of Research in Dermatology. 4, 4 (Oct. 2018), 534–538. DOI:https://doi.org/10.18203/issn.2455-4529.IntJResDermatol20184456.