Hedstrom, Margarets, Maria Saaf, and Nils Dalen. 1999. “Low IGF-I Levels in Hip Fracture Patients: A Comparison of 20 Coxarthrotic and 23 Hip Fracture Patients”. Acta Orthopaedica 70 (2):145-48. https://doi.org/10.3109/17453679909011253.