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Early Hum Dev. 2002 Oct;69(1-2):91-105.

Methodologic issues in epidemiologic studies of congenital microcephaly.

Author information

1
Department of Neurology, Harvard Medical School and Children's Hospital, Neuroepidemiology Unit, Boston, MA 02115-5724, USA. alan.leviton@tch.harvard.edu

Abstract

In this methodological paper, we explore a number of issues that pose problems for those who seek the antecedents of congenital microcephaly. We pay particular attention to three concerns: Who is a case? How should cases be classified? To whom should cases be compared?

PMID:
12324187
DOI:
10.1016/s0378-3782(02)00065-8
[Indexed for MEDLINE]

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