H??ng d?n s? d?ng viên u?ng ??i Tràng ColMin h? tr? ng??i b? viêm ??i tràng, b?nh ??i tràng ch?c n?ng ????????? ??????????? ???? ???? ??? ??? ? ???? ?????. ????? ???? ?? ???? ???? ?????. [41] However, all around this time, an acquaintance introduced him to