@article{doi:10.1302/0301-620X.67B4.4030846, author = {Kakkar, VV and Fok, PJ and Murray, WJ and Paes, T and Merenstein, D and Dodds, R and Farrell, R and Crellin, RQ and Thomas, EM and Morley, TR and et, al.}, title = {Heparin and dihydroergotamine prophylaxis against thrombo-embolism after hip arthroplasty}, journal = {The Journal of Bone & Joint Surgery British Volume}, volume = {67-B}, number = {4}, pages = {538-542}, year = {1985}, doi = {10.1302/0301-620X.67B4.4030846}, url = {https://doi.org/10.1302/0301-620X.67B4.4030846} }