Effectiveness-implementation hybrid type 2 trial evaluating two psychoeducational programmes for severe hypoglycaemia in type 1 diabetes: implementation study protocol - Soukup,T; Hull,L; Smith,EL; Healey,A; Bakolis,I; Amiel,SA; Sevdalis,N; Kendall,M; Warren,L; Ruszala,V; Stephenson,M; Durrant,A (BMJ OPEN, 2019)