Practice change intervention to improve antenatal care addressing alcohol consumption during pregnancy: a randomised stepped-wedge controlled trial

- Doherty, Emma; Kingsland, Melanie; Azzopardi, Carol; Rissel, Chris; Gillham, Karen; Tsang, Tracey W.; Reeves, Penny; Wiggers, John; Elliott, Elizabeth J.; Tully, Belinda; Wolfenden, Luke; Dunlop, Adrian; Symonds, Ian; Attia, John; Ward, Sarah; Hunter, Mandy