Gupta, Mimi, Debasish Das, and Nandini Chakraborty. “Impact of Help or Crisis Lines for Mental Health: Proposal for a Systematic Review Using PRISMA-2020 Statement”. The Physician 7, no. 3 (October 30, 2022): 1-4. Accessed December 8, 2022. https://physicianjnl.net/index.php/phy/article/view/135.