This Handbook was updated by Anne Littlewood and Charlene Bridges, Cochrane Information Specialist Support Team, 2017.

We acknowledge the earlier contribution to this document of:

Liz Doney (Cochrane Information Specialist Support Team / Cochrane Skin Group)
Lynn Hampson (Cochrane Pregnancy and Childbirth Group)
Gail Higgins (Cochrane Kidney and Transplant Group)
Karen Hovhannisyan (Cochrane Information and Knowledge Management Department)
Ruth Foxlee (Cochrane Editorial Unit)
Vittoria Lutje (Cochrane Infectious Diseases Group)