Vijayabhaskar, C., and S. Venkatesan. “Clinicoepidemiological Study of Chronic Urticaria in a Government Tertiary Care Centre in South India”. International Journal of Research in Dermatology, vol. 6, no. 1, Dec. 2019, pp. 100-3, doi:10.18203/issn.2455-4529.IntJResDermatol20195682.