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.) CitationUne, 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.) CitationUne, 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.