TY - GEN AU - Ejlertsen,T AU - Schønheyder,H C AU - Thisted,E TI - Beta-lactamase production in Branhamella catarrhalis isolated from lower respiratory tract secretions in Danish children: an increasing problem SN - 0300-8126 PY - 1992///0421 KW - Adolescent KW - Child KW - Child, Preschool KW - Denmark KW - Humans KW - Infant KW - Infant, Newborn KW - Moraxella catarrhalis KW - enzymology KW - Respiratory Tract Infections KW - microbiology KW - Retrospective Studies KW - beta-Lactamases KW - biosynthesis N1 - Publication Type: Journal Article UR - https://doi.org/10.1007/BF01645357 ER -