学会発表（国際）
Estimation of treatment effect adjusting for treatment changes using the intensity score method: application to a large primary prevention study for coronary events (MEGA study).
Tanaka Y, Matsuyama Y, Ohashi Y and MEGA Study group. Estimation of treatment effect adjusting for non-compliance using the intensity score method - an application to a large primary prevention study for coronary events -. XXIIIrd International Biometrics Conference. Montreal, Canada, 17/July-21/July, 2006.