Please people - do a search. This took me four seconds to find:
http://www.canadavisa.com/canada-immigration-discussion-board/avoid-medicals-before-ita-if-you-can-new-cic-rule-t337135.0.html
http://www.canadavisa.com/canada-immigration-discussion-board/medicals-before-ita-t429058.0.html
http://www.canadavisa.com/canada-immigration-discussion-board/upfront-medical-exam-before-ita-t427848.0.html
http://www.canadavisa.com/canada-immigration-discussion-board/just-got-my-medical-exam-before-ita-is-it-invalid-t279295.0.html
