Enabling good transition processes from child to adult medical care: a study protocol - Ravnbøl, Camilla Ida; Altweck, Laura; Schmidt, Silke; Bistrup, Lene; Borgwardt, Stefan; Arnfred, Sidse Marie; Jeppesen, Pia; von Bismarck, Philipp; Nellegaard, Julie Bork; Prehn-Kristensen, Alexander; Colic, Ada (Frontiers in Health Services, 2025)