Physical activity and handgrip strength in patients with mild, moderate and severe haemophilia: Impacts on bone quality and lean mass - Pia Ransmann; Marius Brühl; Jamil Hmida; Georg Goldmann; Johannes Oldenburg; Frank Alexander Schildberg; Robert Ossendorff; Fabian Tomschi; Alexander Schmidt; Thomas Hilberg; Andreas Christian Strauss (PLoS ONE, 2025)