@misc{indiciae47f92161ff61, title = {An improved method for density gradient zone electrophoresis.}, author = {M J Peak and F T Robb and J A Day and A Marais}, year = {1970}, doi = {10.1016/0003-2697(70)90386-6}, url = {https://pubmed.ncbi.nlm.nih.gov/5452967/}, note = {Source identifier: 5452967} }