APA
Zapata-Colindres J. C., Zepeda-Gómez S., Montaño-Loza A., Vázquez-Ballesteros E., de Jesús Villalobos J. & Valdovinos-Andraca F. (20060829). The association of Helicobacter pylori infection and nonsteroidal anti-inflammatory drugs in peptic ulcer disease. : Canadian journal of gastroenterology = Journal canadien de gastroenterologie.
Chicago
Zapata-Colindres Juan Carlos, Zepeda-Gómez Sergio, Montaño-Loza Aldo, Vázquez-Ballesteros Edgar, de Jesús Villalobos José and Valdovinos-Andraca Francisco. 20060829. The association of Helicobacter pylori infection and nonsteroidal anti-inflammatory drugs in peptic ulcer disease. : Canadian journal of gastroenterology = Journal canadien de gastroenterologie.
Harvard
Zapata-Colindres J. C., Zepeda-Gómez S., Montaño-Loza A., Vázquez-Ballesteros E., de Jesús Villalobos J. and Valdovinos-Andraca F. (20060829). The association of Helicobacter pylori infection and nonsteroidal anti-inflammatory drugs in peptic ulcer disease. : Canadian journal of gastroenterology = Journal canadien de gastroenterologie.
MLA
Zapata-Colindres Juan Carlos, Zepeda-Gómez Sergio, Montaño-Loza Aldo, Vázquez-Ballesteros Edgar, de Jesús Villalobos José and Valdovinos-Andraca Francisco. The association of Helicobacter pylori infection and nonsteroidal anti-inflammatory drugs in peptic ulcer disease. : Canadian journal of gastroenterology = Journal canadien de gastroenterologie. 20060829.