Join the Search Concepts

Select an Operator to Join the Search Concepts

You should now have the alternate terms for the PPI concept joined by OR’s and enclosed in parentheses. The alternate terms for the nasogastric concept should, similarly, be joined by OR’s and enclosed in parentheses.

(  “proton-pump inhibitor*” OR  PPI OR PPIs OR dexlansoprazole OR Dexilant OR esomeprazole OR Nexium OR lansoprazole OR Prevacid OR omeprazole OR Prilosec OR Zegerid OR pantoprazole OR Protonix OR rabeprazole OR Aciphex)

(“NG tube*”  OR “NG administration“ OR nasogastric )

You have one more decision to make. Should you choose AND, OR or NOT to link the two search concepts? Use the appropriate Boolean operator to join the two concepts.