title: About methodology of pre-/post-studies.
authors: Michelle
authors: M
authors: Brignole
mesh_terms: D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D019462:Syncope, Vasovagal / Q000517:prevention & control*; D014947:Wounds and Injuries / Q000517:prevention & control*