Shyaula, S. L.; Shah, T.; Rathnayaka, R. K.; Samarakoon, S. R.; Manandhar, E.; Yue, J. M.; Manandhar, M. D. Cytotoxicity of Compounds Isolated from Usnea Aciculifera. J. Nepal Chem. Soc. 2023, 43, 125-129.