“The birth of Harry Lloyd Hopkins and his activity in the field of health and sociology 1915-1932 Historical study”, JSHA, no. 88, pp. 293–316, Dec. 2023, Accessed: May 05, 2025. [Online]. Available: https://www.jcoart.uobaghdad.edu.iq/index.php/2075-3047/article/view/743