Sperm selection using a modified "swim up" technique in absence of sperm centrifugation improve sperm DNA fragmentation and decreases miscarriage rate - Vives, YC; Belchin, P; Lopez-Fernandez, C; Fernandez-Rubio, M; Guerrero-Sanchez, J; d Burgos, MS; Garcia-Enguidanos, A; Ordonez, D; Izquierdo, E; Gosalvez, J (Human Reproduction, 2021)