TY - RPRT TI - Solar UVB Radiation for the Synthesis of Vitamin D3 in Four Skin Types - Model Propagation Studies AU - Pasricha, P. K. AU - Upadhayaya, A. K. PY - 2024 DO - 10.1101/2024.12.04.626916 UR - https://www.biorxiv.org/content/10.1101/2024.12.04.626916v1 ID - 10.1101/2024.12.04.626916 ER -