Voice-Message–Based mHealth Intervention to Reduce Postoperative Penetrative Sex in Recipients of Voluntary Medical Male Circumcision in the Western Cape, South Africa: Protocol of a Randomized Controlled Trial

Sarah C Thomsen   ¹ , MA, MPH, PhD ;   Donald Skinner   ² , MA (Clin Psych), MPH, PhD ;   Yoesrie Toefy   ^{1, 2} , MA, MSc ;   Tonya Esterhuizen   ³ , MSc ;   Michael McCaul   ³ , MSc ;   Max Petzold   ⁴ , MSc, PhD ;   Vinod Diwan   ¹ , MPH, PhD, MD

¹ Global Health, Department of Public Health Sciences, Karolinska Institutet, Solna, Sweden

² Department of Interdisciplinary Sciences, Faculty of Medicine and Health Sciences, University of Stellenbosch, Tygerberg, South Africa

³ Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa

⁴ Health Metrics Unit, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden