What's Changed
* enh: add sm_index query by fedorov in https://github.com/ImagingDataCommons/idc-index-data/pull/27
* enh: update sm_index to include PrimaryAnatomicStructureModifier by fedorov in https://github.com/ImagingDataCommons/idc-index-data/pull/28
* feat-generate-external-indices by vkt1414 in https://github.com/ImagingDataCommons/idc-index-data/pull/29
* ENH: add embedding, fixative and staining to sm_index by fedorov in https://github.com/ImagingDataCommons/idc-index-data/pull/30
* enh: add instance-level SM index by fedorov in https://github.com/ImagingDataCommons/idc-index-data/pull/31
**Full Changelog**: https://github.com/ImagingDataCommons/idc-index-data/compare/18.0.1...18.1.0