Causal inference methods to study nonrandomized, preexisting development interventions.
Arnold BF, Khush RS, Ramaswamy P, London AG, Rajkumar P, Ramaprabha P, Durairaj N, Hubbard AE, Balakrishnan K, Colford JM Jr.
Arnold BF, et al.
Proc Natl Acad Sci U S A. 2010 Dec 28;107(52):22605-10. doi: 10.1073/pnas.1008944107. Epub 2010 Dec 13.
Proc Natl Acad Sci U S A. 2010.
PMID: 21149699
Free PMC article.