Google Scholar December 19, 2025 by jlamprecht https://scholar.google.com/scholar_lookup?Westerbeek%20EA,%20van%20den%20Berg%20A,%20Lafeber%20HN,%20Knol%20J,%20Fetter%20WP,%20et%20al.%20The%20intestinal%20bacterial%20colonisation%20in%20preterm%20infants:%20a%20review%20of%20the%20literature.%20Clin%20Nutr.%202006;25:361%E2%80%938.%20doi:%2010.1016/j.clnu.2006.03.002.
