The second frequently prescribed single herb was Salvia miltiorrhiza (Dan-Shen), which is used to improve the stasis status, a common condition existing in cancer pathogenesis according the theory of traditional CM [23, 24]. Salvia miltiorrhiza (Dan-Shen) has also been found to possess anti-inflammatory and anticancer activities in several cancer cell lines, not only via inducing apoptosis of cancer cell but also via inhibiting the estrogen receptor signal pathway, indicating it might influence the stimulation of estrogen on CC cells [25]. This evidence concerns the gene ESR1 and cancer.