Mathew M S, Srinivasan R, Goyal J L, Ratnakar C, Garg B R, Reddy B S
Department of Skin and STD, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India.
Int J Dermatol. 1992 Oct;31(10):710-2. doi: 10.1111/j.1365-4362.1992.tb01378.x.