Study protocol for the development of a digital menstrual cycle diary for routine mental health and gynecological care: A human-centered design approach. - Schmitter, Michèle; Cantineau, Astrid; aan het Rot, Marije; Lely, Annemiek; Verhage, Tom; Servaas, Michelle N.; Riese, Harriëtte (PLoS ONE, 2026)