- Author: Julian Friedmann Christopher Walker
- Language: English
- Year: 2012
- Author: Gautham P. Reddy MD MPH Robert M. Steiner MD Christopher Walker MD
- Language: English
- Year: 2013
- Author: Christopher Walker, Jonathan Hero Chung
- Language: English
- Year: 2018
- Author: McNaughtan Hugh, McCarthy Carolyn, Pitts Christopher, Walker Benedict
- Language: English
- Year: 2018
- Author: Christopher Walker Jonathan Chung
- Language: English
- Year: 2018
- Author: Christopher Walker Tom Baker
- Language: English
- Year: 2019
- Author: Christopher Walker, Ali Kuoppala
- Language: English
- Year: 2016
- Author: Christopher Walker, Ali Kuoppala
- Language: English
- Year: 2016
- Author: Larry Jay Diamond Marc F. Plattner Christopher Walker
- Language: English
- Year: 2016