isions , ▁practices , ▁inter vent ions ▁and / or ▁products ▁being ▁tail ored ▁to ▁the ▁individual ▁patient ▁based ▁on ▁their ▁predicted ▁response ▁or ▁risk ▁of ▁disease . ▁The ▁terms ▁personal ized ▁medicine , ▁precision ▁medicine , ▁strat ified ▁medicine ▁and ▁P 4 ▁medicine ▁are ▁used ▁inter change ably ▁to ▁describe ▁this ▁concept ▁though ▁some ▁authors ▁and ▁organis ations ▁use ▁these ▁expressions ▁separately ▁to ▁indicate ▁particular ▁nu ances . ▁ ▁While ▁the ▁tail oring ▁of ▁treatment ▁to ▁patients ▁dates ▁back ▁at ▁least ▁to ▁the ▁time ▁of ▁Hi pp ocr ates , ▁the ▁term ▁has ▁ris en ▁in ▁usage ▁in ▁recent ▁years ▁given ▁the ▁growth ▁of ▁new ▁di agnostic ▁and ▁inform at ics ▁approaches ▁that ▁provide ▁understanding ▁of ▁the ▁mole cular ▁basis ▁of ▁disease , ▁particularly ▁genom ics . ▁This ▁provides ▁a ▁clear ▁evidence ▁base ▁on ▁which ▁to ▁strat ify ▁( group ) ▁related ▁patients . ▁ ▁Development ▁of ▁concept ▁ ▁In ▁personal ised ▁medicine , ▁di agnostic ▁testing ▁is ▁often ▁employed ▁for ▁selecting ▁appropriate ▁and ▁optimal ▁ther ap ies ▁based ▁on ▁the ▁context ▁of ▁a ▁patient ' s ▁gen etic ▁content ▁or ▁other ▁mole cular ▁or ▁cell ular ▁analysis . ▁The ▁use ▁of ▁gen etic ▁information ▁has ▁played ▁a ▁major ▁role ▁in ▁certain ▁aspects ▁of ▁personal ized ▁medicine ▁( e . g . ▁ph arm ac ogen om ics ), ▁and ▁the ▁term ▁was ▁first ▁co ined ▁in ▁the ▁context ▁of ▁gen et ics , ▁though ▁it ▁has ▁since ▁bro aden ed ▁to ▁en comp ass ▁all ▁sorts ▁of ▁personal ization ▁measures .