TY - JOUR T1 - Sample size of 12 per group rule of thumb for a pilot study JO - PHARM STAT PY - 2005/10/01 AU - Julious SA ED - DO - DOI: 10.1002/pst.185 VL - 4 IS - 4 SP - 287 EP - 291 Y2 - 2024/12/22 ER -