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Appendix I: Search strategies



                   Question: How effective is exchange transfusion? Question 8 (restricted to Srs and RCTs)


                   Ovid MEDLINE(R) 1950 to November Week 3 2008

                   JAUN_extransfusion_Q8_medline_011208

                    #                                   Searches                                  Results
                   1  randomized controlled trial.pt.                                             269354
                   2  controlled clinical trial.pt.                                               80768
                   3  DOUBLE BLIND METHOD/                                                        101524
                   4  SINGLE BLIND METHOD/                                                        12756
                   5  RANDOM ALLOCATION/                                                          63696
                   6  RANDOMIZED CONTROLLED TRIALS/                                               58451
                   7  or/1-6                                                                      454611
                   8  ((single or double or triple or treble) adj5 (blind$ or mask$)).tw,sh.      99216
                   9  clinical trial.pt.                                                          460950
                   10 exp CLINICAL TRIAL/                                                         572520
                   11 exp CLINICAL TRIALS AS TOPIC/                                               215006
                   12 (clinic$ adj5 trial$).tw,sh.                                                135409
                   13 PLACEBOS/                                                                   28379
                   14 placebo$.tw,sh.                                                             128819
                   15 random$.tw,sh.                                                              572739
                   16 or/8-15                                                                     1004679
                   17 or/7,16                                                                     1009351
                   18 META ANALYSIS/                                                              20239
                   19 META ANALYSIS AS TOPIC/                                                     8893
                   20 meta analysis.pt.                                                           20239
                   21 (metaanaly$ or meta-analy$ or (meta adj analy$)).tw,sh.                     35744
                   22 (systematic$ adj5 (review$ or overview$)).tw,sh.                            19180
                   23 (methodologic$ adj5 (review$ or overview$)).tw,sh.                          1992
                   24 or/18-23                                                                    50031
                   25 review$.pt.                                                                 1443690
                      (medline or medlars or embase or cinahl or cochrane or psycinfo or psychinfo or
                   26                                                                             32625
                      psychlit or psyclit or "web of science" or "science citation" or scisearch).tw.
                   27 ((hand or manual$) adj2 search$).tw.                                        3596
                      (electronic database$ or bibliographic database$ or computeri?ed database$ or online
                   28                                                                             5571
                      database$).tw,sh.
                   29 (pooling or pooled or mantel haenszel).tw,sh.                               30488
                   30 (peto or dersimonian or der simonian or fixed effect).tw,sh.                1438
                   31 or/26-30                                                                    65157
                   32 and/25,31                                                                   27889
                   33 or/24,32                                                                    66224
                   34 letter.pt.                                                                  654631






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