1. Smartphone aiding in analysis of Hamman's sign. Issue 11 (19th November 2019) Authors: Thakeria, Priyanka; Danda, Nita; Gupta, Anudeep; Anand, Dharmesh Journal: BMJ case reports Issue: Volume 12:Issue 11(2019) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗