Purpose: To construct a risk assessment model for forecasting the likelihood of myopia in elementary school students. Design: A cross-sectional study. Methods: This study utilized convenient sampling and questionnaire survey to collect data from eligible elementary students and their parents during the coronavirus disease 2019 (COVID-19) pandemic period from March to December 2020. https://poolsproductscanadas.shop/product-category/hayward-aquarite-s3-parts/
Hayward AquaRite S3 Parts
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