ptc-gliadin digest and one of its subfractions ( coded as fraction 9 according to its elution pattern ) were very active in inhibiting in vitro development and morphogenesis of small intestine from 17- and 18-day-old rat fetuses , whereas they were harmless for the culture of jejunum from 21-day-old fetuses .
C0021852
small intestine
C0022378
jejunum