@misc{indiciae8c609ceb8560, title = {Improved Friedman pregnancy test; a new method.}, author = {J C NORRIS}, year = {1956}, doi = {10.1097/00007611-195605000-00017}, url = {https://pubmed.ncbi.nlm.nih.gov/13324443/}, note = {Source identifier: 13324443} }