Commercial products: Cordyceps capsules were obtained from the Chinese Medicine Factory of Chengdu, Sichuan (A); from the China United Manufactory of Chinese Medicine, Sichuan (B); from the Kwangchow United Manufactory of Chinese Medicine, Guangdong (C); from Tianjin Medicines and Health Products IMO and EXP Corporation, Tianjin (D); from Hong Fu Loi Medicines and Health Products Corporation, Shunde, Guangdong (E); and from Daan Kongyen Food Ltd.