In using the checklist, investigators should select the items that apply to their types of studies. It is unlikely that any protocol would include every item on the checklist. A number of studies are conducted at CDC that are not classified as research or do not involve humans beings as participants.
d'OrÂ·say. Use d'Orsay in a sentence. noun. A shoe having an upper part that is cut away at the instep to reveal the arch of the foot. Origin of d'Orsay.
C2 the âfact of a good âquality or âsituation being âgradually âlost or âdestroyed: The âsurvey âreveals a âgradual erosion of the president's âpopularity and âsupport. (Definition of erosion from the Cambridge Advanced Learners Dictionary & Thesaurus Â© Cambridge University Press).