TY  - RPRT
TI  - Anticoagulation variability between centres: implications for comparative prosthetic valve assessment.
AU  - E G Butchart
AU  - P A Lewis
AU  - E N Kulatilake
AU  - I M Breckenridge
PY  - 1988
DO  - 10.1016/s1010-7940(88)80002-2
UR  - https://pubmed.ncbi.nlm.nih.gov/3272209/
ID  - 3272209
ER  -