Richard James Green, Nick Dawe, Debra Milne, Ursula Schierle, and James W. Moor, “Ultrasound Guided FNAC for Evaluation of Neck Lumps to Improve Inadequacy Rates; A Complete Audit Cycle ”, J. Can. Res. Updates, vol. 2, no. 2, pp. 105–109, Jul. 2013.