Alryahi, Israa Abd, et al. “Apoptosis-Mediated Antitumor Activity of the Ethanolic Extract of Calotropis Procera Flowers: in Vitro Testing on the MG63 Human Osteosarcoma Cell Line”. Pharmakeftiki , vol. 37, no. 2S, Oct. 2025, doi:10.60988/p.v37i2S.158.