“Investigating the Optimal Duration of the Sun Exposure for Adequate Cutaneous Synthesis of Vitamin D3 in Baghdad City: Depending on Fitzpatrick Skin Classification for Different Skin Types”.
Iraqi Journal of Science 65, no. 1 (January 30, 2024): 546–554. Accessed April 28, 2025.
https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/8688.