Shrestha RL, Jha RN. An isoquinoline alkaloid, Protopine from Corydalis govaniana growing in Himalayan region of Nepal. J. Nepal Chem. Soc. [Internet]. 2013 May 24 [cited 2024 Nov. 21];28:106-9. Available from: https://nepjol.info./index.php/JNCS/article/view/8116