@misc{indiciae8a0eb6ef5616, title = {Disulfide spacer between methotrexate and poly(D-lysine). A probe for exploring the reductive process in endocytosis.}, author = {W C Shen and H J Ryser and L LaManna}, year = {1985}, url = {https://pubmed.ncbi.nlm.nih.gov/4030773/}, note = {Source identifier: 4030773} }