title: Letter: Hepatitis-B surface antigen in breast milk.
mesh_terms: D000818:Animals; D003168:Complement Fixation Tests; D005260:Female; D006386:Hemagglutination Tests; D006509:Hepatitis B / Q000276:immunology*; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006736:Horses / Q000276:immunology; D006801:Humans; D007106:Immune Sera; D008854:Microscopy, Electron; D008895:Milk, Human / Q000276:immunology*; D011247:Pregnancy; D011817:Rabbits; D011863:Radioimmunoassay / Q000379:methods; D013048:Specimen Handling
chemical_list: D006511:Hepatitis B Antigens; D007106:Immune Sera