Welcome to the forum!
We have a number of fields (not subs*) to help with that, some of them free for you to test for yourself. You can find them (and discussions and reports about them) using our helpful forum search engine (that little magnifying glass icon in the upper right corner of every page of this forum).
Happy researching!
*If you’d like to know more about the difference between “subs” and “fields,” feel free to check out our useful Official Sapienmed FAQ (Updated)