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Estimation of a treatment effect based on a modified covariates method with<i>L</i><sub>0</sub>norm

Estimation of a treatment effect based on a modified covariates method with<i>L</i><sub>0</sub>norm

A bstract In randomized clinical trials, we assumed the situation that the new treatment is not adequate compared to the control treatment as result. However, it is unknown if the new treatment is ineffective for all patients or if it is effective for only a subgroup of patients with specific …