@misc{indiciaebe9f97fc23ab, title = {Electrophoresis in polyacrylamide concentration gradient.}, author = {J Margolis and K G Kenrick}, year = {1967}, doi = {10.1016/s0006-291x(67)80041-x}, url = {https://pubmed.ncbi.nlm.nih.gov/6048241/}, note = {Source identifier: 6048241} }