A few dozen of them would be needed to provide the spacious environments necessary for psychological health. After all, the entire point of having a human colony on Mars is to have humans live and thrive on Mars – not to be prisoners for life in enclosed rooms and corridors. Image found...
Cigna's Healthspring, KelseyCare's Kelsey-Seybold plan, Humana's CarePlus Health Plan, Florida Blue and Martin's Point are also on the list.