88280document16047covariate_peptic_ulcer_hes.txttext/plaine63fb7beff72745fa89e0a66170d625d6dcddc33bdd0d61ce4d502d5c302eedaSHA25622952024-05-24 09:12:18https://datacompass.lshtm.ac.uk/id/eprint/4214/14/covariate_peptic_ulcer_hes.txt