The editors, members of the editorial board and the publisher of the European Journal of Epidemiology wish to express their sincere gratitude to the referees of the articles considered for the 2009 volume of the Journal.

Emmanuel Abatih

Emmanuel Toïdi Adekambi

Sunday Aderibigbe

Sara Ahmadi-Abhari

Alvaro Alonso

Annick Alperovitch

André Amaral

Najaf Amin

Eva Andres Esteban

Volker Arndt

Mauricio Avendano

Rachel Bakker

Caroline Barakat Haddad

Pascale Barberger-Gateau

Jan Barendregt

Marian Beekman

Thomas Behrens

Gabriele Berg-Beckhoff

Ivan Berlin

Jonas Björk

Jacques Blacher

Maria Blettner

Paul Blomqvist

Vanina Bongard

Luc Bonneux

Stefanos Bonovas

Michiel Bots

Matteo Bottai

Hermann Brenner

Esben Budtz-Jørgensen

Brian Buijsse

Lex Burdorf

Adrian Cameron

Cristina Canova

Jan Willem Coebergh

Ariel Cohen

Philippe Colson

Patricia Coogan

Andrew Czeizel

Inez de Beaufort

Régis de Gaudemaris

Paulus de Jong

Peter de Knijff

Jesus de Pedro Cuesta

Christine de Peretti

Jaap W. Deckers

Friedo W. Dekker

Robert Dellavalle

Hassan Dib

Nico Dragano

Terry Dwyer

George Ehret

Anna Eleftheriadou

Jonathon Emberson

Jean Philippe Empana

Wildon Farwell

Maria Feychting

Dana Flanders

Astrid Fletcher

Siri Forsmo

Manuel Franco

Wei Gao

Miranda Geelhoed

Johanna Geleijnse

Maurice Giroud

Fredrik Granath

Sander Greenland

Per Hall

William Hallman

Rebecca Hardy

Joachim Heinrich

Miguel Hernan

Henrik Hjalgrim

Barbara Hoffmann

Wolfgang Hoffmann

Jouke-Jan Hottenga

Mohammad Ikram

Hazel Inskip

Aaron Isaacs

Vincent Jaddoe

Monik Jimenez

Eric Jougla

Markus Juonala

Henrik Kallberg

Stephen Kaptoge

Alexander Katalinic

Helen Kelsall

Ali Khashan

Helle Kieler

Caroline Klaver

Alexander Kluttig

Branko Kolaric

Marcel Kornitzer

Thomas Kottke

Kari Kuulasmaa

Kari Kvaal

Iain Lang

Ute Latza

Annette Leclerc

Duk-Hee Lee

William D. Leslie

Jutta Lindert

Jan-Eric Litton

Pedro Marques-Vidal

Fiona Matthews

Fiona McDougall

Elena Moltchanova

Scott Montgomery

Erica Moodie

Dennis Mook

Ceryl Moore

Patricia Moorman

Bertram Müller-Myhsok

Bruno Neuner

Mary Nicolaou

Inger Njolstad

Ula Nur

Elke Ochsmann

Ken Ong

Jean Michel Oppert

Fotis Papadopoulos

Christine Parr

Anna Peeters

Jakob Petersen

Eleni Petridou

Andrea Piccinin

Manue Posada

Christopher Power

Marie Reilly

Eva Ribon

Fernando Rivadeneira

Joacim Rocklov

Annika Rosengren

Kenneth Rothman

Sabine Roza

Jean Bernard Ruidavets

Peter Rzehak

George Savva

Pierre-Yves Scarabin

Brigitte Schlehofer

Maaike Schuur

Randi Selmer

Eric Sijbrands

Archana Singh-Manoux

Gordon Smith

Eric Steegers

Régine Steegers

Olof Stephansson

Christopher Stevenson

Ewout Steyerberg

Elisabeth Strandhagen

Alexander Strasak

Jerry Suls

Yi Sun

Raju Sunagar

Jordi Sunyer

Elisabeth Svensson

Dirk Taeger

Daniel Thomas

Antje Timmer

Hervé Tissot-Dupont

Hanna Tolonen

Bryan Traynor

Dimitrios Trichopoulos

Ylva Trolle Lagerros

Aage Tverdal

Eduard van Beeck

Anton van den Meiracker

Yvonne T. van der Schouw

Kristel Van Steen

Federico Vancheri

Mauno Vanhala

James Vaupel

Anne-Claire Vergnaud

Germaine Verwoert

Johannes Vingerling

Alejandra Vives

Zoltan Voko

Thomas Waldhoer

Stefan Walter

Fredrik Wärnberg

Juergen Wellmann

Hanneke Wijnhoven

Daniel Witte

Anatoli Yashin

Hajo Zeeb

Dorien Zelle

Henry Zheng

Gerhard A. Zielhuis

Bert Ziere