San Antonio researchers are getting the band back together, in a way. They’re reaching out to people who participated in a groundbreaking 1979 study on heart disease and diabetes in the Latino population to see if they’d like to enroll in a new study.San Antonio researchers are getting the band back together, in a way. They’re reaching out to people who participated in a groundbreaking 1979 study on heart disease and diabetes in the Latino population to see if they’d like to enroll in a new study.