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1: Vaccine. 2007 Aug 1;25(31):5875-81. Epub 2007 May 8.Click here to read Links

Hypotonic-hyporesponsive episode (HHE) as an adverse event following immunization in early childhood: case definition and guidelines for data collection, analysis, and presentation.

University Children's Hospital, Basel, Switzerland.

PMID: 17537554 [PubMed]