1 Assistant Professor of Pediatrics, Harvard Medical School; Assistant Physician at the Children's Hospital and at the Infants' Hospital; Visiting Physician at the Floating Hospital, Boston 2 ...

For permission requests, please contact NEJM Reprints at [email protected] Select the format you want to export the citation of this publication.

Background: Pyloric stenosis is the most common condition requiring surgery in the first months of life. Case reports have suggested familial aggregation. However, to what extent this is caused by ...