[Selective IgM deficiency in 2 children].
Zhao
Shun-ying
SY
Jiao
An-xia
AX
Zhang
Gui-fang
GF
D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007075:Immunoglobulin M / Q000172:deficiency*; D008297:Male
D007075:Immunoglobulin M