Girgis, N. I., Butler, T., Frenck, R. W., Sultan, Y., Brown, Tribble, D., & Khakhria, R. (1999). Azithromycin versus Ciprofloxacin for Treatment of Uncomplicated Typhoid Fever in a Randomized Trial in Egypt That Included Patients with Multidrug Resistance. American Society for Microbiology.

Girgis, Nabil I., Thomas Butler, Robert W. Frenck, Yehia Sultan, Brown, David Tribble, και Rasik Khakhria. Azithromycin Versus Ciprofloxacin for Treatment of Uncomplicated Typhoid Fever in a Randomized Trial in Egypt That Included Patients With Multidrug Resistance. American Society for Microbiology, 1999.

Girgis, Nabil I., et al. Azithromycin Versus Ciprofloxacin for Treatment of Uncomplicated Typhoid Fever in a Randomized Trial in Egypt That Included Patients With Multidrug Resistance. American Society for Microbiology, 1999.