RT Journal Article SR Electronic T1 β-alanine: performance effects, usage and side effects JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 311 OP 312 DO 10.1136/bjsports-2017-098025 VO 52 IS 5 A1 Vincent Kelly YR 2018 UL http://bjsm.bmj.com/content/52/5/311.abstract AB