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Enzing, Joost J., Frédérique C. W. van Krugten, Iryna Sabat, Sebastian Neumann-Böhme, Bert Boer, Saskia Knies, Werner B. F. Brouwer, and ECOS consortium. "Psychometric Evaluation of the Mental Health Quality of Life (MHQoL) Instrument in Seven European Countries." Health and Quality of Life Outcomes 20, no. 1 (2022): 1-11. https://doi.org/10.1186/s12955-022-02041-6.

Enzing, Joost J., et al. "Psychometric Evaluation of the Mental Health Quality of Life (MHQoL) Instrument in Seven European Countries." Health and Quality of Life Outcomes, vol. 20, no. 1, 2022, pp. 1-11, https://doi.org/10.1186/s12955-022-02041-6.