Rajaraman Nivetha, Arumugam , B. , Annamalai Radhakrishnan, Vikram Ashokkumar and Arunagirinathan Keerthana 2023. A cross-sectional comparative study of anxiety and depression among doctors working in covid care centres during the first and second waves of COVID-19 pandemic in Chennai, Tamil Nadu. Asian Journal of Medical Sciences. 14, 2 (Feb. 2023), 3–8. DOI:https://doi.org/10.3126/ajms.v14i2.49260.