Correction to: Clinical Rheumatology (2019) 38:611–615

https://doi.org/10.1007/s10067-018-04403-2

In the above article [1], the section labelled ‘Misuse of the ASQoL’ incorrectly lists Reference 19 [2] as having used an unauthorised language version of the Ankylosing Spondylitis Quality of Life Questionnaire (ASQoL).

The author wishes to correct the record and clarify that the study by Gupta, Parshad and colleagues did not use an unauthorised language version of the ASQoL. The study pertained to the comparison of two procedures in the management of patients with Achalasia Cardia and one of the scales used by the authors was Achalasia disease-specific health-related quality of life.

References

1. McKenna S (2019) It is time for an organised, scientific approach to the application of patient-reported outcome measures in clinical studies and trials. Clin Rheum 38:611–615

2. Gupta P, Parshad R, Balakrishna P, Saraya A, Makharia GK, Sachdeva S, Sharma R (2018) Angle of his accentuation is a viable alternative to dor fundoplication as an adjunct to laparoscopic Heller cardiomyotomy: results of a randomized clinical study. Dig Dis Sci 63:2395–2404