TY - CONF T1 - An investigation of the factors which influence children with asthma having unscheduled medical contacts around the start of the new school year in England and Wales: a mixed methods study JO - TRIALS PY - 2017/05/08 AU - Simpson R AU - Julious SA AU - Baird WO ED - VL - 18 Y2 - 2024/09/20 ER -