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Increased activity of 16-membered lactone ring macrolides against erythromycin-resistant Streptococcus pyogenes and Streptococcus pneumoniae: characterization of South African isolates.
Klugman KP, Capper T, Widdowson CA, Koornhof HJ, Moser W. Klugman KP, et al. Among authors: koornhof hj. J Antimicrob Chemother. 1998 Dec;42(6):729-34. doi: 10.1093/jac/42.6.729. J Antimicrob Chemother. 1998. PMID: 10052895
In vitro antimicrobial susceptibility of viridans streptococci isolated from blood cultures.
Potgieter E, Carmichael M, Koornhof HJ, Chalkley LJ. Potgieter E, et al. Among authors: koornhof hj. Eur J Clin Microbiol Infect Dis. 1992 Jun;11(6):543-6. doi: 10.1007/BF01960811. Eur J Clin Microbiol Infect Dis. 1992. PMID: 1526239
Trimethoprim resistance in South African isolates of aerobic gram-negative faecal flora.
Adrian PV, Koornhof HJ, Wylie BA. Adrian PV, et al. Among authors: koornhof hj. Eur J Clin Microbiol Infect Dis. 1993 Dec;12(12):916-21. doi: 10.1007/BF01992165. Eur J Clin Microbiol Infect Dis. 1993. PMID: 8187786
Antibiotic resistance of nasopharyngeal isolates of Streptococcus pneumoniae from children in Lesotho.
Mthwalo M, Wasas A, Huebner R, Koornhof HJ, Klugman KP. Mthwalo M, et al. Among authors: koornhof hj. Bull World Health Organ. 1998;76(6):641-50. Bull World Health Organ. 1998. PMID: 10191560 Free PMC article.
Drug resistance patterns and serogroups or serotypes of pneumococcal isolates from cerebrospinal fluid or blood, 1979-1986.
Klugman KP, Koornhof HJ. Klugman KP, et al. Among authors: koornhof hj. J Infect Dis. 1988 Nov;158(5):956-64. doi: 10.1093/infdis/158.5.956. J Infect Dis. 1988. PMID: 3183429
Clinical and nasopharyngeal isolates of unusual multiply resistant pneumococci.
Klugman KP, Koornhof HJ, Kuhnle V. Klugman KP, et al. Among authors: koornhof hj. Am J Dis Child. 1986 Nov;140(11):1186-90. doi: 10.1001/archpedi.1986.02140250112045. Am J Dis Child. 1986. PMID: 3766492
Antibiotic susceptibility testing of Neisseria gonorrhoeae.
Robins-Browne RM, Gaillard MG, Koornhof HJ. Robins-Browne RM, et al. Among authors: koornhof hj. J Antimicrob Chemother. 1979 Jan;5(1):67-72. doi: 10.1093/jac/5.1.67. J Antimicrob Chemother. 1979. PMID: 104953 No abstract available.
Activities of four aminoglycosides at subbactericidal concentrations.
Schrire L, Robinson RG, Doehring RO, Koornhof HJ. Schrire L, et al. Among authors: koornhof hj. Antimicrob Agents Chemother. 1982 Jul;22(1):137-9. doi: 10.1128/aac.22.1.137. Antimicrob Agents Chemother. 1982. PMID: 7125624 Free PMC article.
Comparative in vitro appraisal of piperacillin, including its activity against Salmonella typhi.
Robinson RG, Saunders J, Cassel R, Block CS, Koornhof HJ. Robinson RG, et al. Among authors: koornhof hj. Antimicrob Agents Chemother. 1980 Oct;18(4):493-501. doi: 10.1128/aac.18.4.493. Antimicrob Agents Chemother. 1980. PMID: 6449903 Free PMC article.
In vitro activity of A-56619 (difloxacin), A-56620, and other new quinolone antimicrobial agents against genital pathogens.
Liebowitz LD, Saunders J, Fehler G, Ballard RC, Koornhof HJ. Liebowitz LD, et al. Among authors: koornhof hj. Antimicrob Agents Chemother. 1986 Dec;30(6):948-50. doi: 10.1128/aac.30.6.948. Antimicrob Agents Chemother. 1986. PMID: 3101590 Free PMC article.
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