TY  - RPRT
TI  - Risk factors for ulcerative reflux oesophagitis: a case-control study.
AU  - P Ryan
AU  - D J Hetzel
AU  - D J Shearman
AU  - A J McMichael
DO  - 10.1111/j.1440-1746.1995.tb01098.x
UR  - https://pubmed.ncbi.nlm.nih.gov/7548808/
ID  - 7548808
ER  -