@misc{indiciae0bc76d206d08, title = {Heparin prophylaxis.}, author = {J G Sharnoff}, year = {1971}, doi = {10.1016/s0140-6736(71)91585-6}, url = {https://pubmed.ncbi.nlm.nih.gov/4101259/}, note = {Source identifier: 4101259} }