Lessons Learned Identifying and Controlling Fraudulent Participation in Online Randomized Trials. - Siebers, Robert; Magane, Kara M; Slayton, Hattie; Karzhevsky, Skylar; Palfai, Tibor P; Abrantes, Ana M; Quintiliani, Lisa M; Stein, Michael D (Journal of Medical Internet Research, 2025)