ln the clinics, a trained research assistant approacnuu pai-
nts of children under 6 years old and invited them to pat-
€
ticipate in the study. After giving written consent, one parent
in each couple complete
search questionnaire in
33
d and returned a self-administered re-
for their clinic
from each
appointment. One class W
re-
kindergarten, and
child Parents
10 days.
agreed