The relative age effect across an international soccer programme in male and female players aged 12 years old to seniors - Morgans, R.; Radnor, J.; Nisbet, D.; Teixeira, J.; Modric, T.; Bezuglov, E.; Ceylan, H. I.; Kavanagh, R.; Zmijewski, P.; Oliveira, R. (Journal of Human Kinetics, 2024)