TY - GEN AU - Masaki,Nobuyuki AU - Koyama,Tatsuki AU - Yoshimura,Isao AU - Hamada,Chikuma TI - Optimal two-stage designs allowing flexibility in number of subjects for phase II clinical trials SN - 1520-5711 PY - 2010///0520 KW - Clinical Trials, Phase II as Topic KW - statistics & numerical data KW - Computer Simulation KW - Data Interpretation, Statistical KW - Humans KW - Models, Statistical KW - Sample Size KW - Treatment Outcome N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1080/10543400902964167 ER -