TY - JOUR KW - Animals KW - Bacterial Vaccines KW - Cells, Cultured KW - Child KW - Humans KW - leprosy KW - Malaria KW - Vaccination KW - Vaccines KW - Viral Vaccines AU - Perkins F T BT - Developments in biological standardization C1 - http://www.ncbi.nlm.nih.gov/pubmed/7364153?dopt=Abstract DA - 1980 J2 - Dev. Biol. Stand. LA - eng PY - 1980 SP - 3 EP - 13 T2 - Developments in biological standardization TI - Risks and gains associated with vaccination. VL - 46 SN - 0301-5149 ER -