Final answer:
The studies that used multiple control conditions are McBurney et al., (1977), Lahaut et al, (2002), and Verdan et al., (2012).
Step-by-step explanation:
The studies that used multiple control conditions are:
- McBurney et al., (1977)
- Lahaut et al, (2002)
- Verdan et al., (2012)