TUESDAY, Dec. 4, 2018 — Many patients intentionally withhold information from clinicians, according to a study published online Nov. 30 in JAMA Network Open. Andrea Gurmankin Levy, Ph.D., from Middlesex Community College in Middletown, Connecticut, and colleagues recruited two national nonprobability samples (Amazon’s Mechanical Turk [MTurk], 2,096 respondents, and Survey Sampling International [SSI], 3,011 respondents)