TY - RPRT TI - Vacutainer sampling for blood coagulation assays. AU - I Norén AU - M Blombäck AU - E Fridell AU - U Wallinder PY - 1978 DO - 10.3109/00365517809108404 UR - https://pubmed.ncbi.nlm.nih.gov/628819/ ID - 628819 ER -