Several factors including ITPA polymorphism influence ribavirin-induced anemia in chronic hepatitis C Tsubota, A.; Shimada, N.; Abe, H.; Yoshizawa, K.; Agata, R.; Yumoto, Y.; Ika, M.; Namiki, Y.; Nagatsuma, K.; Matsudaira, H.; Fujise, K.; Tada, N.; Aizawa, Y. World Journal of Gastroenterology 18(41): 5879-5888 2012 2219-2840 10.3748/wjg.v18.i41.5879 https://eurekamag.com/research/055/737/055737173.php