Schneiderman, Rosa, Nahum Rosenberg, Yehuda Hiss, Phillip Lee, and Alice Maroudas. 1995. “Concentration and Size Distribution of IGF-I in Human Normal and Osteoarthritic Synovial Fluid and Cartilage”. Acta Orthopaedica 66 (sup266):75-76. https://doi.org/10.3109/17453679509157654.