This is far from a solved problem in medicine. Higher salaries aren't enough to attract the number of doctors are needed, and there are also other issues that a

This is far from a solved problem in medicine. Higher salaries aren't enough to attract the number of doctors are needed, and there are also other issues that actively drive away doctors. (For example, fewer doctors to split the call pool in rural areas means that doctors may need to work more nights and weekends than they would in urban areas.)