# A comparison of estimators from self-controlled case series, case-crossover design, and sequence symmetry analysis for pharmacoepidemiological studies

> Research article (BMC Medical Research Methodology, 2018) · cited 45× · AI/ML

**Wikidata**: [openalex:W2784000506](https://www.wikidata.org/wiki/openalex:W2784000506)  
**Source**: https://4ort.xyz/entity/a-comparison-of-estimators-from-self-controlled-case-series-case-crossover-design-and-sequence-symmetry-analysis-for-pha