Boolean operators help in refining search results:
- AND: Narrows the search by combining terms. All terms must be present in the results. (e.g., "pediatric asthma AND treatment") - OR: Broadens the search by including any of the terms. (e.g., "pediatric asthma OR childhood asthma") - NOT: Excludes terms from the search. (e.g., "pediatric asthma NOT adults")
