Thesis References Path 

1 Pub med

2Books

3 cross references 

4 Read the cross references care fully

With minimum time it's skill the title of reference will help you to

judge if it could help you.

5 keep a xcell record of each references how old is journal

When the first article was published.

6 pub med helps you to know eta when your reference was studied

Extensively

 Lastly write comments 

This is second article