Comment: I can tell you one country with long wait lists: India.
And why? Because Indian-trained doctors are siphoned off to the U.S., attracted to the inflated income U.S. doctors can earn thanks to its commodity-driven health system.
Not fair to India, but that's "The Market" in operation!
"Patients hoping to get surgeries done at Delhi's two premier government-run speciality hospitals may have to wait for a period ranging between six months and three years", said the Times of India in 2010 (a bit dated for sure but probably still reasonably accurate),.