|rheumatoid arthritis AND tofacitinib||498|
|rheumatoid arthritis AND tofacitinib Filters: Randomized Controlled Trial||46|
|rheumatoid arthritis AND tofacitinib AND (cohort study OR case control study)||31|
Note: "Cohort Study" and "Case Control Study" are not included in the list of Article Types. Search for them as key words.
Use the boolean operator 'OR' to add terms that could be included in the search results.
Use the boolean operator 'AND' to add terms that must be included in the search results.
When combining phrases with AND and OR, enclose the OR terms in parentheses so the OR search is executed by itself before being included in the rest of the search.
|tofacitinib AND safety||286|
|"Janus Kinase Inhibitors/adverse effects"[Mesh]||58|
|"Janus Kinase Inhibitors/adverse effects"[Mesh] AND tofacitinib||28|
|Example of searching for more popular topics:|
|methotrexate AND rheumatoid arthritis||8956|
|"Methotrexate/adverse effects"[Mesh] AND "arthritis, rheumatoid"[Mesh]||1775|
|"Methotrexate/adverse effects"[Mesh] AND "arthritis, rheumatoid"[Mesh] AND ("cohort studies"[Mesh] OR "case-control studies"[Mesh])||357|
Note: Methotrexate, an older drug, is itself a MeSH term, so you can attach a subheading to specifically capture articles on adverse effects of methotrexate. Tofacitinib is not a MeSH term, but you can search for adverse effects of janus kinase inhibitors, the class of molecules it belongs to.
Note: Cohort studies and case-control studies are actually MeSH terms, not Article Types.