The Influence of Sampling Technique on ACT Plus® Results Monique E. Brouwer, Ramen Miraziz, Grace Agbulos, Rona Steel, Peter Hales and Peter Klineberg J Extra Corpor Technol, 44 4 (2012) 194-197 Published online: 15 December 2012 DOI: 10.1051/ject/201244194