Opt-In and Opt-Out Consent Procedures for the Reuse of Routinely Recorded Health Data in Scientific Research and Their Consequences for Consent Rate and Consent Bias: Systematic Review. - de Man, Yvonne; Wieland-Jorna, Yvonne; Torensma, Bart; de Wit, Koos; Francke, Anneke L; Oosterveld-Vlug, Mariska G; Verheij, Robert A (Journal of Medical Internet Research, 2023)