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Leyrat, C; Caille, A; Foucher, Y; Giraudeau, B; (2016) Propensity score to detect baseline imbalance in cluster randomized trials: the role of the c-statistic. BMC medical research methodology, 16 (1). p. 9. ISSN 1471-2288 DOI: https://doi.org/10.1186/s12874-015-0100-4

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Leyrat, C; Caille, A; Donner, A; Giraudeau, B; (2014) Propensity score methods for estimating relative risks in cluster randomized trials with low-incidence binary outcomes and selection bias. Statistics in medicine, 33 (20). pp. 3556-75. ISSN 0277-6715 DOI: https://doi.org/10.1002/sim.6185 Full text not available from this repository.