Gso ba rig paʼi khog phubs legs bsdus źig daṅ rtsa ba thugs kyi rgyud kyi ʼgrel pa ʼbru snon śin tu legs pa = Gso ba rig paʼi khog phubs legs bsdus zhig dang rtsa ba thugs kyi rgyud kyi ʼgrel pa ʼbru snon shin tu legs pa : a historical work on medicine and a commentary on first of the medical tantras by Ratna, the physician of Bde-chen Chos-ʼkhor Monastery