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. 2014 Jul 25;2014(7):CD007533. doi: 10.1002/14651858.CD007533.pub3
  Version Date of search Records retrieved RCT/CCT filter applied Records retrieved Duplicates Records sent
1. PaPaS Specialised Register 18 May 2009 18 May 2009 21 RCT/CCT  21 1   20
2. The Cochrane Library 2009, Issue 2 18 May 2009 33 CENTRAL 27 21 6
        COCHRANE REVIEWS 2   2
        DARE (other reviews) 3   3
 3. MEDLINE (Ovid) 1950 to May week 2 2009 18 May 2009 164 Cochrane filter 140 23 117
  In‐Process & Other Non‐Indexed Citations 15 May 2009 18 May 2009 5 No 5 0 5
 4. EMBASE (Ovid) 1980 to 2009 week 20 18 May 2009 338 Yes 63 33 30
 5. LILACS 1982 to present 18 May 2009 13 no 13 1 12
Totals         274 79 195