TY - SER AU - Mumtaz, Shamim AU - Ahmad, Mumtaz AU - Akhtar, Naeem TI - Extended Spectrum -Lactamases in Urinary Gram Negative Bacililand Their Susceptibility Pattern KW - Extended Spectrum B-Lactamases KW - Enterobacteriaceae KW - Enteric Gram-Negative Rods ER -