APA (7th ed.) Citation

Une, C., Bendaña, W. M., Ramírez-Mayorga, V., Bixby, L. R., & Ramos, R. S. Helicobacter pylori infection and serum pepsinogen concentrations in an elderly population representative of Costa Rica. Universidad de Costa Rica.

Chicago Style (17th ed.) Citation

Une, Clas, Wendy Malespín Bendaña, Vanessa Ramírez-Mayorga, Luis Rosero Bixby, and Rafaela Sierra Ramos. Helicobacter Pylori Infection and Serum Pepsinogen Concentrations in an Elderly Population Representative of Costa Rica. Universidad de Costa Rica.

MLA (9th ed.) Citation

Une, Clas, et al. Helicobacter Pylori Infection and Serum Pepsinogen Concentrations in an Elderly Population Representative of Costa Rica. Universidad de Costa Rica.

Warning: These citations may not always be 100% accurate.