[Twin cases with methylmalonic aciduria and homocysteinemia].
Hao
Hu
H
Song
Yuan-Zong
YZ
Xiao
Xin
X
D000592:Amino Acid Metabolism, Inborn Errors / Q000473:pathology*; D002675:Child, Preschool; D006801:Humans; D008297:Male; D014427:Twins