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Respiratory Protection Effect of Ear-loop-type KF94 Masks according to the Wearing Method in COVID-19 Pandemic: a Randomized, Open-label Study.

Hyun Jun YangHee YoonSoo Yeon KangGun-Tak LeeJong Eun ParkTae Rim KimSe Uk LeeSung Yeon HwangWon Chul ChaTae-Gun ShinIk Joon Jo
Published in: Journal of Korean medical science (2021)
ClinicalTrials.gov Identifier: NCT04794556.
Keyphrases
  • open label
  • clinical trial
  • phase ii
  • study protocol
  • squamous cell carcinoma
  • phase ii study
  • respiratory tract
  • rectal cancer
  • double blind