Patki, M.B., Arumugam, B., Anusuya, G.S., Karthik, R.C., Mani, E. and Annamalai, R. 2020. Mobile phone usage and its perceived ill health effects: a cross sectional study in Chennai, India. International Journal Of Community Medicine And Public Health. 7, 8 (Jul. 2020), 2993–3001. DOI:https://doi.org/10.18203/2394-6040.ijcmph20203058.