Validity, reliability, and readability of single-item and short physical activity questionnaires for use in surveillance: a systematic review https://www.medrxiv.org/content/10.1101/2023.07.19.23292870
Validity, reliability, and readability of single-item and short physical activity questionnaires for use in surveillance: a systematic review https://www.medrxiv.org/content/10.1101/2023.07.19.23292870