6,608
Participants
Start Date
April 1, 1991
Primary Completion Date
December 1, 1995
Study Completion Date
December 1, 1995
None - observational
No intervention - observational only
Collaborators (1)
Société des Produits Nestlé (SPN)
INDUSTRY
Wellcome Trust
OTHER
Medical Research Council
OTHER_GOV
University of Bristol
OTHER