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* D: disease-based network, G: gene-based network, E: exposure-based
network, CC: case control studies included, C: cohort studies included
, CC>C: mostly case control, but also cohort studies included, C>CC:
mostly cohorts, but also case control studies included.
† In the number of teams, multicenter teams count
as one team, and the number of investigators may be much larger;
the number in parenthesis shows the approximate total number of subjects
in the compiled databases
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