Evgenie Nikolaevich! Tell or Say please, that such " Photodynamic therapy...

[Maria]

Evgenie Nikolaevich! Tell or Say please, what such " Photodynamic therapy "? Thanks.

[Toropov E.N.]

Maria, in brief - in an organism enter special substance which collects in the amazed or struck tissues, then influence the amazed or struck site laser radiation which raises or excites this substance and it allocates the toxic elements killing amazed or struck cells.