@misc{indiciaeb4f3a20cc94f, title = {Methotrexate sensitivity in Down's syndrome: a hypothesis.}, author = {P M Ueland and H Refsum and B Christensen}, year = {1990}, doi = {10.1007/bf00686245}, url = {https://pubmed.ncbi.nlm.nih.gov/2137726/}, note = {Source identifier: 2137726} }