Physical activity and physical fitness among children and adolescents after the onset of the COVID-19 pandemic in the WHO European Region: a systematic review protocol - Ludwig-Walz, Helena; Siemens, Waldemar; Heinisch, Sarah; Dannheim, Indra; Loss, Julika; Bujard, Martin (BMJ open, 2023)
Online veröffentlicht: 20. September 2023