TY - BOOK AU - Rubel, Md. Zahir Uddin AU - ED - TI - Histological study of the mucosal immune system in the gastrointestinal tracts of animals: phd thesis U1 - 639.089 22 KW - Histological study KW - mucosal immune system KW - gastrointestinal tracts of animals N1 - Phd thesis of Faculty of; Includes bibliographical reference. ER -