Oral phosphodiesterase-5 inhibitor does not augment red blood cell deformability at rest or during handgrip exercise - Andrew R. Steele; Liam A. Kightley-Kauser; Jacob McCormick; Nina K. Geerts; Brydie Lemkes; Jonah C. Dizon; Jay M. J. R. Carr; Philip N. Ainslie (European Journal of Applied Physiology, 2026)