TY - CONF T1 - Methodological, planning and implementation challenges for rcts evaluating group interventions JO - Trials PY - 2013/11/29 AU - Hind D AU - Roberts C AU - Sprange K AU - Gossage-Worrall R AU - Cooper C AU - Walters S ED - DO - DOI: 10.1186/1745-6215-14-s1-o124 PB - Springer Science and Business Media LLC VL - 14 IS - Suppl 1 SP - O124 EP - O124 Y2 - 2025/07/12 ER -