title: Deficient H phenotypes.
mesh_terms: D000017:ABO Blood-Group System; D005796:Genes; D014644:Genetic Variation; D006801:Humans; D007194:India; D010375:Pedigree; D010641:Phenotype; D012463:Saliva / Q000276:immunology
chemical_list: D000017:ABO Blood-Group System