@misc{indiciae7eea2928391a, title = {Improved expression vectors for eukaryotic promoter/enhancer studies.}, author = {J L Fridovich-Keil and J M Gudas and I B Bryan and A B Pardee}, year = {1991}, url = {https://pubmed.ncbi.nlm.nih.gov/1725108/}, note = {Source identifier: 1725108} }