Study (year)

T1

T2

T3

T4

Selcukbiricik et al. (2013) [93]

92

74

41

0

Zhou et al. (2010) [82]

100

74

57

0

Giordano et al. (2004) [31]

78

67

40

19

Vaizey et al. (1999) [194]

88

50

27

5

Ribeiro et al. (1996) [86]

76

66

43

-