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Time Method: Cross-Sectional

P

Early, D., Burchinal, M., Barbarin, O., Bryant, D., Chang, F., Clifford, R., Crawford, G., Weaver, W., Howes, C., Ritchie, S., Kraft-Sayre, M., Pianta, R., Barnett, W. S.
U. S. Department of Education

S

U. S. Department of Education
U. S. Department of Education

T

U. S. Department of Education

Y

U. S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion

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