@misc{indiciae8f8b02ed0bfc, title = {Bovine cartilage and marrow extract.}, author = {P A Berg and H Dürk and J Saal and G Hopf}, year = {1989}, doi = {10.1016/s0140-6736(89)92374-x}, url = {https://pubmed.ncbi.nlm.nih.gov/2566821/}, note = {Source identifier: 2566821} }