PICO is a novel approach of allowing users to conduct a focussed search based on a structured clinical question Learn more at cebm.net
There are 4 elements and not all are compulsory, but the more you use the more focussed the results. We use a contingency search to reduce information overload, click here for further details.
MedPageToday, 2012
One recent study showed that than people who don't jog and report an overall sense of well being.In association with 
