Basic Research
Copyright ©The Author(s) 2005.
World J Gastroenterol. Aug 7, 2005; 11(29): 4490-4496
Published online Aug 7, 2005. doi: 10.3748/wjg.v11.i29.4490
Figure 1
Figure 1 Foregut embryonic epithelium as seen in the esophagus and stomach at 7-wk GA. Note the presence of depressions in the epithelial surface (arrowheads): these may be primitive pits. The immunostaining is for CK19 and shows diffuse moderate to strong positivity (original magnification, OM ×400).