TY  - GEN
AU  - James,William H
TI  - A further note on testing for a birth order effect in ankylosing spondylitis
SN  - 0004-3591
PY  - 2003///0224
KW  - Birth Order
KW  - Humans
KW  - Risk Factors
KW  - Spondylitis, Ankylosing
KW  - epidemiology
N1  - Publication Type: Comment; Letter
UR  - https://doi.org/10.1002/art.10693
ER  -