# CaseSeries - Schema.org Enumeration Member

> Source: https://schema.org/CaseSeries
> Extracted: 2026-02-16T15:55:31.613Z

---

**Note**: You are viewing the development version of [Schema.org](https://schema.org/). See [how we work](https://schema.org/docs/howwework.html) for more details.

A Schema.org Enumeration Member

A case series (also known as a clinical series) is a medical research study that tracks patients with a known exposure given similar treatment or examines their medical records for exposure and outcome. A case series can be retrospective or prospective and usually involves a smaller number of patients than the more powerful case-control studies or randomized controlled trials. Case series may be consecutive or non-consecutive, depending on whether all cases presenting to the reporting authors over a period of time were included, or only a selection.

A member value for enumeration type: [MedicalObservationalStudyDesign](https://schema.org/MedicalObservationalStudyDesign "MedicalObservationalStudyDesign")