Petchiappan, Velammal, Adityan Guhan, Sumitra Selvam, and V. N. Nagaprabu. 2018. “ANA Immunofluorescence Versus Profile-How Well They Perform in Autoimmune Diseases: An Analysis of Their Clinical Utility in a Tertiary Care Centre”. International Journal of Research in Medical Sciences 6 (9):3140-46. https://doi.org/10.18203/2320-6012.ijrms20183659.