H. Zhu, H. Luo, and W. . Lai, “Efficacy of timolol in the treatment of facial hemangioma and its effect on the proliferation and apoptosis of hemangioma stem cells: Treatment and impact of timolol on hemangioma”, Cell Mol Biol (Noisy-le-grand), vol. 69, no. 10, pp. 115–120, Oct. 2023.