A. Helstad

发表

Isolation of Campylobacter fetus subsp. jejuni from Human Fecal Specimens by Incubation at 35 and 42°C

D. Janssen, A. Helstad, 1982 .

Thermostable Clostridium perfringens as cause of food poisoning outbreak.

A. Evans, A. Helstad, A. Mandel, 1967, Public health reports.

Aerobically Incubated Thioglycolate Broth Disk Method for Antibiotic Susceptibility Testing of Anaerobes

T. Kurzynski, J. W. Yrios, A. Helstad, 1976, Antimicrobial Agents and Chemotherapy.

Evaluation of two broth disk methods for antibiotic susceptibility testing of anaerobes

T. Kurzynski, W. Amos, A. Helstad, 1984, Antimicrobial Agents and Chemotherapy.

Rapid Laboratory Identification of Neisseria gonorrhoeae by Coagglutination

A. Helstad, M. Bruns, 1980, Journal of clinical microbiology.

Recovery of anaerobic, facultative, and aerobic bacteria from clinical specimens in three anaerobic transport systems

D. Maki, A. Helstad, J. Kimball, 1977, Journal of clinical microbiology.

A foodborne outbreak of enterotoxigenic Escherichia coli diarrhea.

J. Wells, W. R. Taylor, W. Schell, 1982, The New England journal of medicine.

Survival of anaerobic and aerobic bacteria on cotton swabs in three transport systems

E. Balish, S. Inhorn, J. W. Yrios, 1975, Journal of clinical microbiology.

Improved reliability of the primary plate bacitracin test on throat cultures with sulfamethoxazole-trimethoprim blood agar plates

T. Kurzynski, A. Helstad, C. Meise, 1979, Journal of Clinical Microbiology.