label: Technique other than surface culture of the wound exudate used (eg, Levine/deep swab technique, semi-quantitative or quantitative swab technique) or wound surface culture technique not used (CWC)
label_lc: technique other than surface culture of the wound exudate used (eg, levine/deep swab technique, semi-quantitative or quantitative swab technique) or wound surface culture technique not used (cwc)