Prevalence and course of pregnancy symptoms using self-reported pregnancy app symptom tracker data. - Michael Nissen; Nuria Barrios Campo; Madeleine Flaucher; Katharina M. Jaeger; Adriana Titzmann; Dominik Blunck; Peter A. Fasching; Victoria Engelhardt; Bjoern M. Eskofier; Heike Leutheuser (npj Digit. Medicine, 2023)