Caffeine Gum Improves Reaction Time but Reduces Composure Versus Placebo During the Extra-Time Period of Simulated Soccer Match-Play in Male Semiprofessional Players. - Field, Adam; Corr, Liam; Birdsey, Laurence; Langley, Christina; Marshall, Ben; Wood, Greg; Hearris, Mark; Martinho, Diogo; Carbry, Christa; Naughton, Robert; Fleming, James; Mohr, Magni; et al. (International Journal of Sport Nutrition & Exercise Metabolism, 2024)