Choosing Heparinized Over Non-Heparinized Capillary Tubes in the Centrifugal Microhematocrit Method: Is there a significant difference when testing EDTA samples?. Issue 9 (21st September 2015) - Hughes, Virginia C.; Cox, Richie; Ernest, Cheryl; Carter, Amanda; Hollins, Catrina; Grace, Nichole; Jackson, Cornese; White, Cecilia D.; Allen, Erica