Bone-Mineral Density and Other Features of the Female Athlete Triad in Elite Endurance Runners: A Longitudinal and Cross-Sectional Observational Study. - Pollock, Noel; Grogan, Claire; Perry, Mark; Pedlar, Charles; Cooke, Karl; Morrissey, Dylan; Dimitriou, Lygeri (International Journal of Sport Nutrition & Exercise Metabolism, 2010)