Al-Mahbashi, H. M., A. M. E. Shaibany, M. A. Al-Ghazali, H. A. Al-Shamahy, and A. A. M. Al-Ankoshy. “CYTOTOXIC ACTIVITIES IN VITRO OF FLOWER EXTRACTS OF THREE SPECIES OF ALOE GROWING IN YEMEN:ALOE RUBROVIOLACEAE, ALOE VERA AND ALOE SABAEA, AGAINST ELEVEN TYPES OF CANCER CELL LINES”. Universal Journal of Pharmaceutical Research, Vol. 6, no. 4, Sept. 2021, doi: