title: Estimating a treatment effect under biased sampling.
abstract: Methods are presented for the estimation of a treatment effect based on before- and after-treatment values, where for ethical reasons all and only those patients are treated whose before-treatment values exceed a given constant.
authors: Institute of Biostatistics, Rutgers University, New Brunswick, NJ 08903.
authors: H
authors: H
authors: Robbins
authors: C H
authors: CH
authors: Zhang
mesh_terms: D008433:Mathematics; D008962:Models, Theoretical; D013223:Statistics as Topic; D013812:Therapeutics