21.   Gastric endocrine cell densities were expressed as mean.

22.   For patients with iterative studies, only mean gastric cell densities obtained from the last set of biopsy specimens or from the gastrectomy specimen were taken in consideration.

23.   Bromodeoxyuridine labels human gastric mucosal cells in the S phase.

24.   Limited studies have been published on human gastric mucosal cell proliferation and a detailed overview of such work has been published.