Neither Positive Nor Negative Aspiration Before Filler Injection Should Be Relied Upon as a Safety Maneuver. (25th November 2020) - Goodman, Greg J; Magnusson, Mark R; Callan, Peter; Roberts, Stefania; Hart, Sarah; McDonald, Cara B; Liew, Steven; Porter, Cath; Corduff, Niamh; Clague, Michael