Lassus, Jan, Ilkka Tulikoura, Yrjö T Konttinen, Jari Salo, and Seppo Santavirta. 2002. “Bone Stress Injuries of the Lower Extremity”. Acta Orthopaedica 73 (3):359-68. https://doi.org/10.1080/000164702320155392.