00458nam a2200145Ia 4500008004100000020001800041040001700059082002400076100002400100245009300124260003700217300001000254650001800264700003000282190329s9999||||xx |||||||||||||| ||und||  a9780470057247  aNITILcNITIL  221sta610.72bB731I  aBorenstein, Michael 0aIntroduction to meta-analysiscMichael Borenstein, Larry V Hedges and Julian P T Higgins  aUnited KingdombJohn Wileyc2009  a421p.  aMETA-ANALYSIS  aHedges, Larry V, jt auth.