# Available Keys and Operators in Report
In Report (/viewer/#/report), the following keys can be used as search criteria.
Also, if you use more than one parameter, please insert "&" between each parameter.
| Item | Key | Example |
|---|---|---|
| Study Instance UID | studyinstanceuid | studyinstanceuid=1.2.392.200224.2.3000.8001 |
| Accession Number | accessionnumber | accessionnumber=20180123001 |
In Report (/viewer/#/report), you can use the following operators.
| Item | Operator |
|---|---|
| Equal | = or === |