title: Changed guidance on payment for study participants puts them at higher risk of harm, group says.
authors.affiliation: Seattle.
authors.forename: Michael
authors.initials: M
authors.lastname: McCarthy
mesh_terms: D006291:Health Policy; D006801:Humans; D007258:Informed Consent; D017410:Practice Guidelines as Topic; D060926:Remuneration; D035842:Research Subjects / Q000191:economics*; D012306:Risk; D014481:United States