Ultrasonographic Evaluation of Three Approaches for Botulinum Toxin Injection into Tibialis Posterior Muscle in Chronic Stroke Patients with Equinovarus Foot: An Observational Study. - Spina S; Facciorusso S; Botticelli C; Intiso D; Ranieri M; Colamaria A; Fiore P; Ciritella C; Genêt F; Santamato A (Toxins, 2021)