TY - GEN AU - Fierer,J AU - Guiney,D TI - Extended-spectrum beta-lactamases: a plague of plasmids SN - 0098-7484 PY - 1999///0218 KW - Gram-Negative Bacteria KW - drug effects KW - Gram-Negative Bacterial Infections KW - drug therapy KW - Humans KW - Plasmids KW - beta-Lactam Resistance KW - genetics N1 - Publication Type: Comment; Editorial UR - https://doi.org/10.1001/jama.281.6.563 ER -