Study | D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | Overall |
---|---|---|---|---|---|---|---|---|---|---|
Maclean et al. | Low | Low | High | High | Low | Low | Low | High | Average | High |
Kress et al. | Low | Low | Average | High | Low | low | low | High | Average | Average |
DeLurgio et al. | High | Low | High | High | Low | Low | Low | High | High | High |
Jan et al. | High | Low | High | High | Low | Low | Low | High | High | High |