[Improvement of a tube for aspiration biopsy of the small-intestine mucosa].
D001707:Biopsy, Needle / Q000295:instrumentation*; D007413:Intestinal Mucosa / Q000473:pathology*; D007421:Intestine, Small / Q000473:pathology*
Usovershenstvovanie zonda dlia aspiratsionnoĭ biopsii slizistoĭ tonkogo kishechnika