An email-based intervention to improve the number and timeliness of letters sent from the hospital outpatient clinic to the general practitioner: A pair-randomized controlled trial. - Medlock, Stephanie; Parlevliet, Juliette L.; Sent, Danielle; Eslami, Saeid; Askari, Marjan; Arts, Derk L.; Hoekstra, Joost B.; de Rooij, Sophia E.; Abu-Hanna, Ameen (PLoS ONE, 2017)