3
by Robertshaw, Andrew
Published 2008
British Broadcasting Corporation (BBC)

4
by Ereira, Alan
Published 1990
British Broadcasting Corporation (BBC)

8
by Wessner, Charles W.
Published 2009
National Academies Press

9
by Wessner, Charles W.
Published 2009
National Academies Press

10
by Butler, Adrienne Stith
Published 2009
National Academies Press

16
Published 2015
The National Academies Press

17
Published 2015
Canadian Agency for Drugs and Technologies in Health

19
by Jeong, Jae-Woong
Published 2020
MDPI - Multidisciplinary Digital Publishing Institute