Observational Study Designs

Headache. 2019 Jul;59(7):981-987. doi: 10.1111/head.13572.
No abstract available

Keywords: Headache; observational studies; study design.

Publication types

  • Editorial

MeSH terms

  • Epidemiologic Studies*
  • Humans
  • Migraine Disorders*
  • Observational Studies as Topic*
  • Research Design*