Styrud , J. ., Unger , E. ., & Eriksson , U. J. . (1990). Metabolism in Vitro of Cartilage Proteoglycans in Rat (Pre)chondrocytes from Different Embryonic Regions. Upsala Journal of Medical Sciences, 95(1), 31–44. https://doi.org/10.3109/03009739009178574