RT Journal Article SR Electronic T1 IOC consensus statement on relative energy deficiency in sport (RED-S): 2018 update 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 687 OP 697 DO 10.1136/bjsports-2018-099193 VO 52 IS 11 A1 Margo Mountjoy A1 Jorunn Kaiander Sundgot-Borgen A1 Louise M Burke A1 Kathryn E Ackerman A1 Cheri Blauwet A1 Naama Constantini A1 Constance Lebrun A1 Bronwen Lundy A1 Anna Katarina Melin A1 Nanna L Meyer A1 Roberta T Sherman A1 Adam S Tenforde A1 Monica Klungland Torstveit A1 Richard Budgett YR 2018 UL http://bjsm.bmj.com/content/52/11/687.abstract AB