42
Published 2009
RCOG Press

43
Published 2007
RCOG Press

45
by Packham, Karen
Published 2010
Royal College of Obstetricians and Gynaecologists

46
Published 2019
National Institute for Health and Care Excellence

47
by Watts, Geoff
Published 2007
National Institute for Health and Clinical Excellence (NICE)

50
Published 2010
National Institute for Health and Clinical Excellence

52
Published 2011
National Institute for Health and Clinical Excellence (NICE)

53
Published 2006
National Institute for Health and Clinical Excellence (NICE)

54
Published 2011
National Institute for Health and Clinical Excellence (NICE)

55
Published 2005
National Institute for Health and Clinical Excellence (NICE)

56
by Watts, Geoff
Published 2006
National Institute for Health and Clinical Excellence (NICE)

57
Published 2013
National Institute for Health and Clinical Excellence (NICE)

58
by Watts, Geoff
Published 2007
National Institute for Health and Clinical Excellence (NICE)

59
Published 2011
National Institute for Health and Clinical Excellence (NICE)

60
Published 2007
National Institute for Health and Clinical Excellence (NICE)