Institute for Systems Biology, Seattle, WA, USA.|Institute for Systems Biology, Seattle, WA, USA.|Institute for Systems Biology, Seattle, WA, USA.|Institute for Systems Biology, Seattle, WA, USA.|Institute for Systems Biology, Seattle, WA, USA.|Institute for Systems Biology, Seattle, WA, USA.|Institute for Systems Biology, Seattle, WA, USA.|Institute for Systems Biology, Seattle, WA, USA.|Institute for Systems Biology, Seattle, WA, USA.|Institute for Systems Biology, Seattle, WA, USA.