NIH 1997 N01 DK |
Helicobacter Pylori Testing and Alternate Cag-A Testing Perez-Perez, Guillermo I. / Vanderbilt University Medical Center |
|
NIH 1996 N01 DK |
Helicobacter Pylori Testing and Alternate Cag-A Testing Perez-Perez, Guillermo I. / Vanderbilt University Medical Center |
|