D. B. Upadhyay, S. B. Agrawal, A. P. Verma, N. Mahajan, and N. Shah, “Evaluation of Prevalence of Daytime Sleepiness and its Association with Chronotype in Undergraduate Medical and Paramedical Students: Evaluation of Prevalence of Daytime Sleepiness and its Association with Chronotype”, Natl J Integr Res Med, vol. 10, no. 4, pp. 10–17, Sep. 2019.