Can precision medicine do for depression what it’s done for cancer? It won’t be easy

Can precision medicine do for depression what it’s done for cancer? It won’t be easy

Source: 
Stat
snippet: 

At a growing number of research centers across the country, scientists are scanning brains of patients with depression, drawingtheir blood, asking about their symptoms, and then scouring that data for patterns. The goal: pinpoint subtypes of depression, then figure out which treatments have the best chance of success for each particular variant of the disease.