Correction to: Increase of catastrophic health expenditure while it does not have socio-economic anymore; finding from a district on Tehran after recent extensive health sector reform

Correction to: BMC Health Serv Res (2019) 19:569

https://doi.org/10.1186/s12913-019-4418-1

In the original publication of this article [1], the title should be revised as blow:

Increase of catastrophic health expenditure while it does not have socio-economic inequality anymore; findings from a district in Tehran after recent extensive health sector reform.