TY  - RPRT
TI  - Spondylitis in chronic ulcerative colitis.
AU  - N J ZVAIFLER
AU  - W MARTEL
PY  - 1960
DO  - 10.1002/art.1780030109
UR  - https://pubmed.ncbi.nlm.nih.gov/13847951/
ID  - 13847951
ER  -