Biosafety in laboratory animal facilities, Van Vaerenbergh, Bernadette, Van Droogenbroeck C., Do Thi Chuong Dai, Verheust C., Willemarck Nicolas, Brosius B., and Leunda Amaya , 0/0/2012, Volume WIV-ISP Scientific Report 2010-2011, Number 94, Brussels, p.3, (2012)