Acknowledgment
We are grateful to the department of Blood Transfusion affiliated with
Hiroshima University Hospital for the measurement of the anti-human
neutrophil antigen antibody. S. G. planed and performed experiments,
analyzed data, and wrote the article. S. H. performed experiments and
provided experimental assistance. S. K. and H. K. provided experimental
assistance. S. O. and M. K. discussed the results and reviewed the
article.