WHO. 10 facts about cancer. World Health Organization. World Health Organization; 2014 [cited 2014 Jan 4]. Available from: http://www.who.int/features/factfiles/cancer/en/. Supriyadi E, Widjajanto PH, Purwanto I, Cloos J, Veerman AJP, Sutaryo S. Incidence of childhood leukemia in Yogyakarta, Indonesia, 1998-2009.[…]
[msjonline.org]