Roles and responsibilities
Draft the protocol	MH, KD, NW, SO
Develop a search strategy	CS, KD
Search for trials	CS, KD, RH
Obtain copies of trials	HH, KD, RH
Select which trials to include	KD, HH, MH, NW, RH
Extract data from trials	KD, HH, NW, MH, RH, RG
Enter data into RevMan	KD, MH, HH, RH, RG
Carry out the analysis	KD, HH, RG
Interpret the analysis	KD, HH, RG, MH, NW, SO, RH
Draft the final review	KD, HH, MH, SO, NW, RG
Update the review	KD, MH, NW, RH, RG
CERQual	KD, RH