I believe the answer is: Case study
Case study refers to a form of research that includes in-depth and detailed examination toward a certain subject study as its method of collecting data. Case study is the type of research that's the most popular by researchers in formal work background/ settings.
 
        
             
        
        
        
Just don’t take the drug in all honesty
        
             
        
        
        
New england i believe (in 1623)