You just refer to what, when, where, who, how and why.

http://ebrschools.instructure.com/eportfolios/5707/Amlip_5_Mg_50_Mg__Cipla__Blood_Pressure_
http://learn.canvas.net/eportfolios/12582/Cordarone_100_Mg_Hemp_Oil__SanofiAventis__Heart

縺ゅ縺 メッセージ
You needn t restrict split testing to your e-newsletters you can also split test sign-up forms or landing pages to see which versions generate the most subscribers.