Ayliffe G A, Buckles A, Casewell M W, Cookson B D, Cox R A, Duckworth G J, French G L, Griffiths-Jones A, Heathcock R, Humphreys H, Keane C T, Marples R R, Shanson D C, Slack R, Tebbs E
J Hosp Infect. 1999 Dec;43(4):315-6. doi: 10.1016/s0195-6701(99)90429-2.