00551nas a2200169   4500000000100000008004100001260001500042100001100057700002400068700001300092700001500105700001100120700001800131700001300149700001200162245020700174       2012                            d  aLondon, UK1 aLam C.1 aMartiniuk Alexandra1 aGupta S.1 aRibeiro R.1 aYeh S.1 aTsimicalis A.1 aArora A.1 aChen T.00aAbandonment of Treatment Working Group.  Magnitude, predictors and causes of abandonment of therapy in pediatric acute leukemia in low and middle-income countries: a systematic review and meta-analysis.