@misc{indiciaee302ff8b6051, title = {Technical factors affecting the prothrombin time determination.}, author = {H B Hill and E M Low and I Schoen}, year = {1970}, doi = {10.1093/ajcp/54.3.348}, url = {https://pubmed.ncbi.nlm.nih.gov/5507282/}, note = {Source identifier: 5507282} }