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9,311 results
  1. ... as PPH. Studies were typically conducted or data collected over long time frames (median study duration = 5 years, range 6 months to 29 years), ...
  2. ... holders of the secondary data may take significant time. Less expensive because data used are already collected. The duration of the study is short relative to studies ...
  3. ... place at their summits only after some weeks' duration. They are at times collected into groups, so close together as to appear ...
  4. ... 90 percent of women were postmenopausal at the time of enrollment in the cohort. Information on breastfeeding was collected in 1994 to 1997; total duration of breastfeeding was calculated as the sum of ...
  5. NLM Digital Collections - Digital health technologies for remote data acquisition in clinical investigations : guidance ... 
    Publication: Silver Spring, MD : Center for Drug Evaluation and Research, December 2023
    ... of sleep activity, whereas PSG data are typically collected at only select times relative to the entire duration of the clinical investigation (e.g., 2 successive ...
  6. ... to treasure up and com- municate the facts collected by the Observing faculties, and give the idea of duration in time and harmony in sound. The Reflective or Reasoning ...
  7. ... data to support a CEA, especially past this time frame, are likely to be very limited. Resource Use, Size, and Duration Because a CEA can draw from previously collected data, the cost of such a study should ...
  8. NLM Digital Collections - Contact tracing for air travel : CDC’s data system needs substantial improvement : report to .... 
    Publication: Washington, DC : United States Government Accountability Office, July 2022
    ... airlines with passenger information that CBP has already collected to enforce customs, 16Thresholds for exposure duration and time to notification are disease dependent. For example, according ...
  9. ... recall bias likely present due to length of time between exposure and BF self-report (women were between 50–79). Hwang, 2016 111 No No Probably no High Duration of lactation is collected retrospectively over a potentially long period of recall, ...
  10. ... Haller, whose accuracy and industry are well known, collected together the most authentic facts recorded in his time respecting the duration of the life of man, and found the ...
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