title: ABO blood group system and cigarette smoking: interaction in chronic airways obstruction.
mesh_terms: D000017:ABO Blood-Group System; D000328:Adult; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000097:blood*; D008297:Male; D008875:Middle Aged; D012907:Smoking
chemical_list: D000017:ABO Blood-Group System