New therapeutic aspects of steroidal cardiac glycosides: the anticancer properties of Huachansu and its main active constituent Bufalin

a Increase of publication in number in the recent 10 years; Data was retrieved from PubMed in 5-year interval with keywords of (“Neoplasms”[MeSH] AND “bufalin” OR “huachansu” OR “chansu” OR “chan-su”). b Steady annual citation of our phase II clinical trial since its publication in recent 5 year