ǁNaeǁgau ra saos
c Mû re Journal of Thoracic and Cardiovascular Surgery, Volume 134, No. 2, 287ǁî tsî 288ǁî ǂhawekha; Texas Heart Institute Journal, Volume 38, No. 5, 563ǁî ǂhaweba; Basics of Blood Management, 2ǁî ǂhaweba; tsî Continuing Education in Anaesthesia, Critical Care & Pain, Volume 4, No. 2, 39ǁî ǂhaweba.