22
Published 2010
World Health Organization

26
Published 2016
World Health Organization

28
Published 2017
World Health Organization

31
by Grzemska, Malgorzata
Published 2014
World Health Organization

34
by Lamoureux, Vincent B.
Published 2011
World Health Organization

35
Published 2004
IARC Press

38
Published 2016
World Health Organization

39
Published 2010
World Health Organization

40
Published 2016
World Health Organization