TY - BOOK T1 - The digestive system T2 - The Encyclopedia of Health ; The Healthy body A1 - Avraham, Regina LA - English PP - New York PB - Chelsea House YR - 1989 UL - https://tuklas.up.edu.ph/Record/UP-1685523046125286855 OP - 99 CN - QP 145 A97 1989 KW - Digestion. KW - Gatrointestinal system : Physiology. ER -