Prospective and external validation of an objective performance status (OPS) in patients with metastatic solid malignancies using wearable accelerometry - Manz, Christopher; Ruiz-Hispan, Eva; Hernandez Guerrero, Tatiana; de Speville Uribe, Bernard Doger; Morillo, Daniel; Mahillo, Ignacio; Garcia-Foncillas, Jesus; Ferrell, William J; Barnett, Ian J; Schriver, Emily R; Bharat Parikh, Ravi; Moreno, Victor (Journal Of Clinical Oncology, 2024)