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Ongerth JE, Stibbs HH.Ongerth JE, et al. Among authors: stibbs hh.Appl Environ Microbiol. 1987 Apr;53(4):672-6. doi: 10.1128/aem.53.4.672-676.1987.Appl Environ Microbiol. 1987.PMID: 3579275Free PMC article.
Ongerth JE, Johnson RL, Macdonald SC, Frost F, Stibbs HH.Ongerth JE, et al. Among authors: stibbs hh.Am J Public Health. 1989 Dec;79(12):1633-7. doi: 10.2105/ajph.79.12.1633.Am J Public Health. 1989.PMID: 2817191Free PMC article.