Hypotonic-hyporesponsive episode (HHE) as an adverse event following immunization in early childhood: case definition and guidelines for data collection, analysis, and presentation.
Buettcher
Michael
M
University Children's Hospital, Basel, Switzerland.
Heininger
Ulrich
U
Braun
Miles
M
Bonhoeffer
Jan
J
Halperin
Scott
S
Heijbel
Harald
H
de Menezes Martins
Reinaldo
R
Vermeer-de Bondt
Patricia
P