TY - GEN AU - Mitchell,R J AU - Sunderland,E TI - ABH secretion in Northumberland, England SN - 0001-5652 PY - 1982///1021 KW - ABO Blood-Group System KW - genetics KW - Adolescent KW - Child KW - England KW - Female KW - Gene Frequency KW - Genetics, Population KW - Humans KW - Male KW - Polymorphism, Genetic KW - Saliva KW - analysis N1 - Publication Type: Journal Article UR - https://doi.org/10.1159/000153287 ER -