Medline ® Abstract for Reference 17
of 'Microcephaly in infants and children: Etiology and evaluation'
Methodologic issues in epidemiologic studies of congenital microcephaly.
Leviton A, Holmes LB, Allred EN, Vargas J
Early Hum Dev. 2002;69(1-2):91.
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?
Department of Neurology, Harvard Medical School and Children's Hospital, Neuroepidemiology Unit, Boston, MA 02115-5724, USA. email@example.com