- Author: W. Richard Webb Charles B. Higgins
- Language: English
- Year: 2010
- Author: James Shipman Jerry D. Wilson Charles A. Higgins Bo Lou
- Language: English
- Year: 2020
- Author: James T. Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
- Language: English
- Year: 2015
- Author: W. Richard Webb Charles B. Higgins
- Language: English
- Year: 2016
- Author: Charles B. Higgins Albert de Roos MD
- Language: English
- Year: 2013
- Author: Charles B. Higgins Albert de Roos
- Language: English
- Year: 2006
- Author: Charles B Higgins, Albert de Roos
- Language: English
- Year: 2006
- Author: James Shipman Jerry D. Wilson Charles A. Higgins
- Language: English
- Year: 2012
- Author: W. Richard Webb Charles B. Higgins
- Language: English
- Year: 2004
- Author: Charles B Higgins Albert de Roos
- Language: English
- Year: 2005