Monte Carlo N-Particle Transport Code Simulation of Leksell Gamma Knife Using Disk Sources of Polystyrene, PMMA, Plastic Water and Head Phantom / 
Ma. Vanessa Francheska P. Perianes, Doreen Alexis F. Villanueva, and Jade R. Dungao. 
 - Manila:  Department of Science and Technology  2016 
 -  Philippine Journal of Science Vol. 145 No. 3  September 2016, pages 271- 274 .
<br/><br/><label>ISSN: </label>0010-3802 
<br/><br/><label>Subjects--Index Terms: </label>External beam radiotherapy,  Leksell Gamma Knife,  MCNP,   Relative dose distribution,  Treatment planning