Patients
The volunteers recruited to the study were aged from 0–18 years; all
were from nonconsanguineous families in mainland China, and included
premature newborns and low BW newborns. Those with PIDs were admitted to
the Children’s Hospital of Chongqing Medical University and diagnosed
according to clinical features, laboratory inspection, and genetic
analysis. WAS or CGD patients accepted for transplantation were followed
up at Children’s Hospital of Chongqing Medical University. Clinical data
were collected during hospitalization. Informed consent was obtained
from participants or their guardians.