Confirmatory validation of the patient health questionnaire - 4 (PHQ-4) for gastrointestinal disorders: A large-scale cross-sectional survey
| Autor: | Apputhurai, Pragalathan, Palsson, Olafur S., Bangdiwala, Shrikant I., Sperber, Ami D., Mikocka-Walus, Antonina, Knowles, Simon R. |
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| Zdroj: | In Journal of Psychosomatic Research May 2024 180 |
| Databáze: | ScienceDirect |
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