関連ワード:
why do you have to fast for a ct scan why do you have to fast for a ct scan with contrast why do you need to fast for a ct scan why do you have to fast before a ct scan with contrast why do you need to fast before a ct scan why do you need to fast before a ct scan with contrast do you have to fast for a ct scan without contrast why do you fast for a ct scan do you have to fast for a ct scan of abdomen how long do you have to fast for a ct scan
