R.L. Bryan Co.

year of publication	ISBN	author(s)	title
1994	978-0-9642715-0-0	B Dasher · N Wiggers and AM Vann	Portal Design in Radiation Therapy
2006	978-0-9642715-1-7	Byron G. Dasher · Anne Marie Vann	Portal Design in Radiation Therapy, 2nd ed