We talk for many reasons, most of all it's for a purpose
It's hard to narrow it down to one root, there are many that can suppress feelings and make a patient negative, or even hostile.
their physical health, mental health, family structure, relationships with others, work/school environment, <span>societal or socioeconomic factors. individual traits, their surroundings, etc. </span>
1. Hospital
2. U.S army radiology specialist
3. CDC
Hopefully one of those helps