title: Gamma G subgroups in human fetal, cord, and maternal sera.
mesh_terms: D000328:Adult; D001769:Blood; D005260:Female; D005333:Fetus / Q000276:immunology*; D006801:Humans; D007106:Immune Sera; D005779:Immunodiffusion; D007074:Immunoglobulin G / Q000145:classification; D007231:Infant, Newborn; D014470:Umbilical Cord / Q000276:immunology*; D005719:gamma-Globulins / Q000032:analysis*
chemical_list: D007106:Immune Sera; D007074:Immunoglobulin G; D005719:gamma-Globulins