Rumination — Do Isreali Infants of Ethiopian Origin Mother Regurgitate More Than Other Infants?
Citation(s)
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Zeisel SH Is maternal diet supplementation beneficial? Optimal development of infant depends on mother's diet. Am J Clin Nutr. 2009 Feb;89(2):685S-7S. doi: 10.3945/ajcn.2008.26811F. Epub 2008 Dec 30. Review.
Do Isreali Infants of Ethiopian Origin Mother Regurgitate More Than Other Infants?
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
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Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
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Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
