Transparency
Declaration of funding
This letter was not funded.
Declaration of financial/other relationships
D.L.B., K.P., M.C., and S.K.F. have disclosed that they are employees of Genentech Inc., South San Francisco, CA, USA.
Free access
This letter was not funded.
D.L.B., K.P., M.C., and S.K.F. have disclosed that they are employees of Genentech Inc., South San Francisco, CA, USA.
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