TY - GEN AU - Loffeld,R J AU - Stobberingh,E TI - Helicobacter pylori and ABO blood groups SN - 0021-9746 PY - 1991///0815 KW - ABO Blood-Group System KW - physiology KW - Adult KW - Aged KW - Antibodies, Bacterial KW - analysis KW - Campylobacter Infections KW - blood KW - Female KW - Helicobacter pylori KW - immunology KW - Humans KW - Immunoglobulin G KW - Male KW - Middle Aged KW - Prospective Studies KW - Risk Factors N1 - Publication Type: Journal Article UR - https://doi.org/10.1136/jcp.44.6.516 ER -