Higher value follow-up for mild antenatal urinary tract dilation: How many additional ultrasounds?

Erika Luis, Children's Hospital at Dartmouth-Hitchcock, Sunapee, NH, United States; Elizabeth Ferrara, Children's Hospital at Dartmouth-Hitchcock, Lebanon, NH, United States; Daniela Ruelas Lomeli, Dartmouth College, Hanover, NH, United States; Alison Holmes, Geisel School of Medicine at Dartmouth, Etna, NH, United States