We read the article by Kosiv KA et al1 with great interest and appreciate the authors’ efforts to analyze many cases of trisomy 13 and 18 with congenital heart disease.… Click to show full abstract
We read the article by Kosiv KA et al1 with great interest and appreciate the authors’ efforts to analyze many cases of trisomy 13 and 18 with congenital heart disease. However, we would like to raise 3 concerns. First, we believe that authors should describe the inclusion and exclusion criteria in greater detail. In particular, the definition of second admission was unclear, … E-mail: iw9e8f{at}bma.biglobe.ne.jp
               
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