Skogland, Lars B., James A.A. Miller, Anna Skottner, and Linda Fryklund. “Serum Somatomedin a and Non-Dialyzable Urinary Hydroxyproline in Girls With Idiopathic Scoliosis”. Acta Orthopaedica 52, no. 3 (January 1, 1981): 307–313. Accessed February 23, 2025. https://actaorthop.org/actao/article/view/28867.