Introduction: Population and Health Services Research.
Boston Children's Hospital, Urology, Boston, MA, United States. Electronic address: caleb.nelson@childrens.harvard.edu.
Caleb
C
Nelson
D002648:Child; D003456:Cryptorchidism / Q000628:therapy; D006302:Health Services Research; D006801:Humans; D007021:Hypospadias / Q000453:epidemiology; D008297:Male