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["Table 1.Baseline Characteristics of the 7 RCTS"]
[null,"Total Population(n)",null,"Gestational Age(weeks)",null,"Birth Weight(g)",null,"Gender(male/female)"]
[null,"Intervention Group","Control Group","Intervention Group","Control Group","Intervention Group","Control Group","Intervention Group","Control Group"]
["L Kovacs 1998[16]",30,30,"25.8±1.6","25.9±1.8","731±147","796±199","10\\20","13\\17"]
["U Merz 1999[17]",12,11,"28.0(27-32)","29.0(27-31)","1108(820-1420)","1120(880-1480)","5\\7","5\\6"]
["B.Jonsson 2000[18]",13,14,"25(23-27)","26(24-29)","766(525-1122)","813(630-1227)","-","-"]
["Bassler 2015[20]",437,419,"26.1±1.3","26.1±1.2","798±193","803±189","222\\215","213\\206"]
["Yeh 2008[19]",60,56,"26.4±2.2","26.7±2.3","881±245","919±272","31\\29","29\\27"]
["Yeh 2016[21]",131,134,"26.5±2.2","26.8±2.2","882±249","935±283","71\\60","72\\62"]
[" L-J D 2017[22]",18,28,"29.4±1.0","29.2±1.4","1310±180","1280±220","4\\14","10\\18"]

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