st: Marginal Structure Model

["Cunlin Wang" <west_garden@hotmail.com>]

Wonder anyone has done the analysis by fitting Marginal Structure Model
using Stata?  The reference is below:

Robins JM, Hernan MA, Brumback Babette.  Marginal Structural Models and
Causal Inference in Epidemiology.  Epidemiology, 2000 Vol.11 550-560.

Thanks.

Sincerely.
Carl. JHU
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