title: Actual or standard bicarbonate?
mesh_terms: D001639:Bicarbonates / Q000097:blood* / Q000592:standards; D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D012016:Reference Values; D012044:Regression Analysis; D012964:Sodium / Q000097:blood
chemical_list: D001639:Bicarbonates; D002245:Carbon Dioxide; D012964:Sodium