Correction: Development of interval-valued fuzzy GRA with SERVPERF based on subjective and objective weights for evaluation of airline service quality: A case study of Korea low-cost carriers.

[This corrects the article DOI: 10.1371/journal.pone.0219739.].

The following information is missing from the Funding statement: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2019R1F1A1058719 and 2019R1G1A1006073). The publisher apologizes for the error.