Hywel Williams
Professor of Dermato-Epidemiology, Nottingham UK. Professor Williams is coordinating editor of the Cochrane Skin Group. He is also the dermatology adviser for Clinical Evidence (BMJ Publishing Group) which is distributed to 500 000 doctors in the US, available free to NHS institutions in the UK and is translated into 10 languages.

Michael Bigby
Assistant Professor of Dermatology, Harvard University Medical School and Chief of Dermatology, Harvard University Health Service. His chief teaching interest is in evidence-based dermatology. He edited a special issue of the Archives in Dermatology devoted to ebd, which has resulted in a quarterly ebd section to which he is a continuing contributor, and he has presented papers and chaired sessions on ebd at the AAD. He has played a major part in introducing the concept in the USA.

Thomas Diepgen
Professor of Dematology, University of Heidelberg, Gemany is a member of European Dermato-epidemiology network and a specialist in contact dermatitis, and occupationally and environmentally acquired conditions

Andrew Herxheimer
Cochrane UK Center is a founding member of the Cochrane Collaboration and now a editor of the Consumer and Communications Group. He is part of the Consumer Network and the Adverse Effects Methods subgroup and also works with the Cochrane skin group.

Luigi Naldi
Consultant Dermatologist at Ospedale Riunit Bergamo, Italy and a member of European Dermato-epidemiology network. He specialises in psoriasis.

Berthold Rzany
C3-Professor for Evidence Based Medicine in Dermatology, Head of the division of Evidence Based Medicine at the department of dermatology at the Humboldt-University in Berlin. His research topics include aesthetic medicine, e.g. botulinum toxin A, collagen, hyaluronic acid, polyactic acid & other injectables, middle depth peelings as well as hyperhidrosis.