%0 Journal Article %K General Earth and Planetary Sciences %K General Environmental Science %B BMJ %D 2015 %G Eng %I BMJ %P 1-11 %R 10.1136/bmj.h2147 %T The PRECIS-2 tool: designing trials that are fit for purpose %U https://www.bmj.com/content/350/bmj.h2147.full.pdf %V 350 %8 05/2015