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๐ ็ซ ็ฏ็ฎ้
observational_study
3 items with this tag.
Jul 04, 2026
Study design
study_design
observational_study
case_control
cross_sectional
cohort_study
randomized_controlled_trial
confounding
bias
Jul 04, 2026
็ ็ฉถ่จญ่จ (Study Design)
study_design
observational_study
case_control
cross_sectional
cohort_study
randomized_controlled_trial
confounding
bias
Jul 04, 2026
็ ็ฉถ่จญ่จ (Study design)
study_design
observational_study
case_control
cross_sectional
cohort_study
randomized_controlled_trial
confounding
bias