論文（英文）
Shinozaki T, Matsuyama Y, Ohashi Y. Estimation of controlled direct effects in time-varying treatments using structural nested mean models
Shinozaki T, Matsuyama Y, Ohashi Y. Estimation of controlled direct effects in time-varying treatments using structural nested mean models: application to a primary prevention trial for coronary events with pravastatin. Stat Med. 2014;33(18):3214-28.