1. Nitrous Oxide Versus Epidural for Pain Management During Labor and Delivery [32K]. (May 2018) Authors: Hirschmann-Levy, Kate; Pan, Stephanie; Cole, David Journal: Obstetrics and gynecology Issue: Volume 131(2018)Supplement 1 Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗