I believe the answer is: Framingham
Framingham study is being done since in order to study hypertension. Currently, the subject of the framingham study has reached its third generation with more than 5000 members. They also study the relation betwen diet , medication , and excercise on heart diseases.
Answer: create a conducive environment where employees are emotional supported and their concerns are heard and rectified when necessary.
Explanation:
Customers are more likely to become motivated if they are cared for and receive the right support in an environment that is friendly and highly welcoming. They will mostly not feel like it's just a job but a career in which the have to give their best and that too will be recognised.
The best treatment that employees receive from their employer is likely to spread out to how they service the customers.