1. Hillman, D. A., Usher, R. H., and Giroud, C. J. P.: Respiratory Distress Syndrome of Prematurity: Urinary Excretion of 17 Hydroxycorticosteroids. To be published.
2. The Respiratory Distress Syndrome of Prematurity. I. Changes in Potassium in the Serum and the Electrocardiogram and Effects of Therapy;Usher;Pediatrics,1959
3. Idem: The Respiratory Distress Syndrome of Prematurity. II. Its Natural Course. Clinical Findings in 65 Distressed and 41 Healthy Premature Infants. Pediatrics, to be published.