Clinical EpidemiologyPeer-reviewers who contributed to this journal during 2013

Dr AbeProfessor Mostafa AbolfotouhDr Subroto AcharjeeDr Oluwakayode AdejoroDr AdlyDr Thomas AhernProfessor Youssef Al-TonbaryProfessor Ashwin AnathakrishnanDr AndreottiDr Vivekanandhan AravindhanDr Marian ArbesmanDr ArrietaDr Mueen AslamDr AtlantisProf Dr Mohd AzamDr Giridhara BabuDr Stéphanie Baillif-GostoliDr William BakerDr Ki Moon BangDr Hamid BaradaranDr Howard BarkanDr Lewellys BarkerDr BehrensProfessor Abdulbari BenerDr BesteDr Debdutta BhattacharyaDr James BowerDr Mal BoyleDr BrodyDr Dominique CadilhacProfessor Luis Marcelo CamargoDr CameronDr CanovaProfessor Guangwen CaoDr Sophie Catteau-JonardDr ChanDr Toshimi Chiba

Dr Umar ChoudryDr Christian ChristiansenDr Arrigo CiceroDr ColemanDr CzaykowskiDr Kaustubh DabhadkarDr Feng DaiDr DaskivichDr DavisDr Ricardo Wagner de AlmeidaDr Koen De SchrijverProfessor Diane DeBellDr Maryam DerogarDr Lisa DeRooDr Meenakshi DevidasDr Diaz-QuijanoDr DowmanDr DudaDr DursunDr Zhuang FengDr FerreiraDr Stephen FieldDr Greg FoxProfessor Cesar FreytesDr Soeren FriisDr Kiminori FujimotoDr Yasuhiro FujiwaraDr Robyn GallagherDr Adeline GalliniDr Henrik GammelagerDr Apar GantiDr Prasad GawadeDr GenuisDr Eva GerdtsDr Sameer R GhateDr Veronese GiacomoDr GilbertsonMiss Deval GorDr Janice GrahamDr Lars-Petter GrananDr Anders GreenDr Grover

Dr GrundmannDr Dalapathi Bheema GugulothuDr GuoDr Jayanta GuptaDr Gareth Hagger-JohnsonDr HandDr HarverDr Elizabeth HatchDr Rohini HernandezDr Bill HillegassDr HoffmeisterDr HolmbergDr Ningqi HouDr HughesDr Anastasia HutchinsonDr HynesDr IkegayaDr Olusegun IlesanmiDr Jun IwamotoDr Khaled JadallahDr Jaume MoraDr C JoshiDr JukicDr KananDr Hirotaka KanzakiDr Naila KhalilDr KierDr KilmerDr Takahide KodamaDr Ahmed Fouad KotbProf Dr Jera KrujaDr Philip Kum-NjiDr KupermanDr KvasnovskyDr LashDr Pia López-JornetDr LøkkegaardDr Aurelio LeoneDr R J LessellsDr Yanli LiDr Yongmei LiDr Li

Clinical Epidemiology 2013 i

Dr Michael LiebmanDr LiebmanDr Kathleen LindellDr Loren LipworthDr Xin LiuDr Jennifer LundDr Simon LyttonDr MageeDr Ali MalikDr Marco MassaniDr McCartneyDr Leslie McIntoshDr McLeanDr Bruno MedeirosDr Rania MekaryDr MendelsohnDr Atte MeretojaProfessor MerrillDr Cui MiaoProfessor Vatsala MisraProfessor Hiroto MiwaDr MiyasakaDr T MonroeDr Anil MorDr Regina MoreiraDr MossDr MulliganDr MurataDr J M MurthyDr MustaphaDr Yuji NaitoDr NakamuraDr Eva NaumannDr NegiDr Anthony NguyenDr Duy NguyenDr Jens Steen NielsenDr Richard NordenvallDr NouraieDr Irena NulmanDr C O'MalleyDr N ObelDr OberlanderDr Olorunfemi OgundeleDr O OgunladeDr Philip Okafor

Dr OlsenDr OlsonDr OlteanuDr PannucciDr Alma PedersenDr Armario PedroDr Josefine PerssonDr Valerie PittetDr PlockingerDr K PolenDr PrattDr Valerie PressDr Carole ProctorDr PrzekopDr Li QinDr RajaramDr Tanu RanaDr RegimbeauDr ReithDr Julie RobothamDr RosenbergDr RoszerDr Muhammad SaaiqDr Uttam SainiDr Hosni Khairy SalemDr SanoskiDr Maria SantoroDr Kittisak SawanyawisuthDr SchaafDr SchifferdeckerDr Mary SchmeidaDr SchmidtDr Morten SchmidtDr Mia Schmidt-HansenDr Thomas SchnelldorferDr Safynaz El Said ShalabyDr T ShamliyanDr Wayne ShanderaDr Suresh SharmaDr Anil SharmaDr SiddiqiDr Inderpal SinghDr D SmajsDr Kimberley SmithDr Elizabeth SmythDr Smyth

Dr Mette SogaardDr Bindu SomarajanDr Raz SomechDr Kenneth SoyemiDr John St CyrDr SteerMr Derrick StobaughDr Mindi StynDr Wenjie SunDr SussmanDr SutherlandDr Elisabeth SvenssonDr TaborDr TanDr Xinyu TangDr TangDr TaniguchiDr TeutschDr Melissa ThrallDr ToledoDr TownsendDr TsaiDr TullerDr Konstantinos TziomalosDr van HeesDr Velez EdwardsDr Rajesh VermaDr Kunhikatta VijayanarayanaDr S K VinodDr VinogradovaDr VisudtibhanDr Reimar W ThomsenDr WahbiDr WalkerDr Songfeng WangDr Yuan-Hung WangDr Bing WangDr WeekeDr Hua WeiDr WilliamsDr XiaDr YenokyanDr Yanlin YuDr Oyindamola YusufDr Zhenzhen Zhang

ii Clinical Epidemiology 2013

Dr Yijie ZhengDr Junya Zhu

Clinical Epidemiology 2013 iii