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Table representation of search results timeline featuring number of search results per year.

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1991 1
1999 1
2009 1
2014 1
2023 0

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The value of high-quality full-day preschool.
Schweinhart LJ. Schweinhart LJ. JAMA. 2014 Nov 26;312(20):2101-2. doi: 10.1001/jama.2014.15124. JAMA. 2014. PMID: 25423218 No abstract available.
Evaluation of early childhood programs.
Schweinhart LJ. Schweinhart LJ. Child Adolesc Psychiatr Clin N Am. 1999 Apr;8(2):395-407, viii-ix. Child Adolesc Psychiatr Clin N Am. 1999. PMID: 10202597 Review.
Disadvantaged children and curriculum effects.
Weikart DP, Schweinhart LJ. Weikart DP, et al. Among authors: schweinhart lj. New Dir Child Dev. 1991 Fall;(53):57-64. doi: 10.1002/cd.23219915309. New Dir Child Dev. 1991. PMID: 1791963 No abstract available.