Observational research suggests that certain foods may lower or raise Parkinson's disease risk, though experts caution that ...

Jerry Ferkingstad's May 17 Local View column, "Research methods at Ely bear center yield skewed results," was a refreshingly honest look at Lynn Rogers' observational bear research. Validated research ...

• The choice between an observational study and a randomized controlled trial (RCT) is not binary. • No algorithm exists for determining whether an observational study or an RCT is best for answering ...

Nancy Dreyer, PhD, MPH, FISE, chief scientific advisor to Picnic Health, shares some of the ways that direct-to-patient approaches have improved observational research. Direct-to-patient approaches ...

We identified research questions for each category, broke them down to clinical information elements, and mapped them to the mCODE model. Gaps were further categorized as model deficiencies, ...

Much of what we know about detailed cloud properties such as cloud hydrometeor size, shape, phase, and concentration, are derived from in situ measurements made on board instrumented aircraft. However ...