pace maker . pacing sites , Right ventricular septal and apical

the topic is . ( Pace maker , pacing site{ septum, apex }, right ventricular septal and right ventricular apical ) .
the research is to look at most important 50 published papers about this topic and to write about each in 3 things
1. number of the patients
2. follow up time .
3. what they are looking for and the conclusion.
total of 10 pages . in each page 5 papers so the total will be 50