The IOC consensus statement: beyond the female athlete triad–relative energy deficiency in sport (RED-S) - Mountjoy, M; Sundgot-Borgen, J; Burke, L; Carter, S; Constantini, N; Lebrun, C; Meyer, N; Sherman, R; Steffen, K; Budgett, R; Ljungqvist, A (Br J Sports Med, 2014)