Please confirm that you are not located inside the Russian Federation
Enter search terms to find related medical topics, multimedia and more.
• Use “ “ for phrases
o [ “pediatric abdominal pain” ]
• Use – to remove results with certain terms
o [ “abdominal pain” –pediatric ]
• Use OR to account for alternate terms
o [teenager OR adolescent ]
This is a close-up of a cold sore (also known as a fever blister) of the lower lip.
SCIENCE SOURCE/SCIENCE PHOTO LIBRARY