TY - RPRT TI - New cannula for intermittent and continuous venous sampling without heparinisation. AU - M J Farthing AU - A M Mattei PY - 1979 DO - 10.1136/bmj.2.6198.1112 UR - https://pubmed.ncbi.nlm.nih.gov/519317/ ID - 519317 ER -