The authors reply

Financiación

This work was funded by the National Institutes of Health (grants R01HD043883 and R01HD049675) and the American Water Works Association Research Foundation (grant 2579). Salary support for D.R.V.E. was provided in part by the National Institutes of Health Building Interdisciplinary Research Careers in Women’s Health career development program (grant K12HD04383); stipend support was provided in part by the National Institute of General Medical Studies for the Vanderbilt Medical-Scientist Training Program (grant T32GM07347). Additional infrastructure resources were provided by the National Institutes of Health National Center for Advancing Translational Sciences (grant UL1TR000445, a Clinical and Translational Science Award). Conflict of interest: none declared.