APA

De Francesco V., Margiotta M., Zullo A., Hassan C., Giorgio F., Burattini O., Stoppino G., Cea U., Pace A., Zotti M., Morini S., Panella C. & Ierardi E. (20070611). Prevalence of primary clarithromycin resistance in Helicobacter pylori strains over a 15 year period in Italy. : The Journal of antimicrobial chemotherapy.

Chicago

De Francesco Vincenzo, Margiotta Marcella, Zullo Angelo, Hassan Cesare, Giorgio Floriana, Burattini Osvaldo, Stoppino Giuseppe, Cea Ugo, Pace Antonella, Zotti Mariangela, Morini Sergio, Panella Carmine and Ierardi Enzo. 20070611. Prevalence of primary clarithromycin resistance in Helicobacter pylori strains over a 15 year period in Italy. : The Journal of antimicrobial chemotherapy.

Harvard

De Francesco V., Margiotta M., Zullo A., Hassan C., Giorgio F., Burattini O., Stoppino G., Cea U., Pace A., Zotti M., Morini S., Panella C. and Ierardi E. (20070611). Prevalence of primary clarithromycin resistance in Helicobacter pylori strains over a 15 year period in Italy. : The Journal of antimicrobial chemotherapy.

MLA

De Francesco Vincenzo, Margiotta Marcella, Zullo Angelo, Hassan Cesare, Giorgio Floriana, Burattini Osvaldo, Stoppino Giuseppe, Cea Ugo, Pace Antonella, Zotti Mariangela, Morini Sergio, Panella Carmine and Ierardi Enzo. Prevalence of primary clarithromycin resistance in Helicobacter pylori strains over a 15 year period in Italy. : The Journal of antimicrobial chemotherapy. 20070611.