Except for Switzerland, Western (not to speak about Eastern) Europe's universal healthcare means universal high taxes, universal low quality of treatment and universal access to waiting queues.
I don't know how anyone can with a straight face argue that the US healthcare system is efficient with regards to money, time, or outcome compared to most single payer systems.
Currently wait times are too long. This is because i) Social care has been chronically underfunded for many years ii) The NHS has been chronically underfunded for many years.
Here's the wait times for IAPT (short form talking therapy for mild to moderate mental health problems -- usually CBT).
http://www.content.digital.nhs.uk/catalogue/PUB22842/IAPT-mo...
> 87.8% waited less than 6 weeks and
> 98.3% waited less than 18 weeks to enter treatment
That's too long, and considerable pressure is being put on trusts to reduce those times.
There's a wealth of data just about IAPT here: http://content.digital.nhs.uk/iaptreports
Do you have any citations from (competent, peer reviewed) journals?