Does matching overcome LaLonde's critique of nonexperimental estimators? von Smith, Jeffrey A, Todd, Petra E

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On the specification and estimation of the production function for cognitive achievement von Todd, Petra E., Wolpin, Kenneth I.

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Matching As An Econometric Evaluation Estimator: Evidence from Evaluating a Job Training Programme von Heckman, James J., Ichimura, Hidehiko, Todd, Petra E.

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The Antigenic Structure of Proteins: A Reappraisal von Benjamin, D C, Berzofsky, J A, East, I J, Gurd, F R N, Hannum, C, Leach, S J, Margoliash, E, Michael, J G, Miller, A, Prager, E M, Reichlin, M, Sercarz, E E, Smith-Gill, S J, Todd, P E, Wilson, A C

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The Schooling of Southern Blacks: The Roles of Legal Activism and Private Philanthropy, 1910–1960 von Donohue, John J., Heckman, James J., Todd, Petra E.

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Sex with stitches: assessing the resumption of sexual activity during the postcircumcision wound-healing period von HEWETT, Paul C, HALLETT, Timothy B, MENSCH, Barbara S, DZEKEDZEKE, Kumbutso, ZIMBA-TEMBO, Susan, GARNETT, Geoffrey P, TODD, Petra E

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Evaluating preschool programs when length of exposure to the program varies: A nonparametric approach von Behrman, Jere R, Cheng, Yingmei, Todd, Petra E

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A simple technique for multiorgan preservation von Chien, S, Todd, EP, Diana, JN, O'Connor, WN

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Ventriculocoronary connections in hypoplastic right heart syndrome: Autopsy serial section study of six cases von O'Connor, William N, Stahr, Benjamin J, Cottrill, Carol M, Todd, Edward P, Noonan, Jacqueline A

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Reconciling Conflicting Evidence on the Performance of Propensity-Score Matching Methods von Smith, Jeffrey A., Todd, Petra E.

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Fractures of first and second ribs: predictive value for arterial and bronchial injury von Woodring, JH, Fried, AM, Hatfield, DR, Stevens, RK, Todd, EP

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Pericardial Flap to Minimize Internal Mammary Artery Anastomotic Tension von Todd, Edward P., Earle, Gary F., Jaggers, Robert, Sekela, Michael

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Upper Rib Fractures Following Median Sternotomy von Woodring, John H., Royer, John M., Todd, Edward P.

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Eighteen to 37 hours' preservation of major organs using a new autoperfusion multiorgan preparation von Chien, Sufan, Diana, John N., Oeltgen, Peter R., Todd, Edward P., O'Connor, William N., Chitwood, W.Randolph

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Passenger Profiling, Imperfect Screening, and Airport Security von Persico, Nicola, Todd, Petra E.

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Pulmonary atresia with intact ventricular septum and ventriculocoronary communications: surgical significance von O'Connor, W N, Cottrill, C M, Johnson, G L, Noonan, J A, Todd, E P

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New autoperfusion preparation for long-term organ preservation von Chien, S, Diana, J N, Todd, E P, O'Connor, W N, Marion, T, Smith, K

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Cerebral vascular response to moderate blood loss: modification by hypertension von HOLLADAY, F. P, BEAN, J. R, YOUNG, B, TODD, E. P, ROY, M. W

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Anomalous left coronary artery from the pulmonary artery: Significance of associated intracardiac defects von Cottrill, Carol M., Davis, Daron, McMillen, Marilyn, O'connor, William N., Noonan, Jacqueline A., Todd, Edward P.

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Surgical repair of congenital tracheal stenosis in an infant von Mattingly, Jr, W T, Belin, R P, Todd, E P

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