Jehanzeb Jahangir Dars, Salma Farukh Memon, Arsalan Ahmed Uqaili, Shakeel Shaikh, Moomal Tagar, Sana Javed. “Prevalence of Insomnia Among Emergency Doctors and Their Physiological Link With Serum Melatonin: Key to Better Sleep Among Doctors of LUMHS”. Pakistan Journal of Medical & Health Sciences, vol. 16, no. 09, Nov. 2022, p. 664, doi:10.53350/pjmhs22169664.