P137: Negative pressure wound therapy in high risk breast procedures (negative pressure PICO study group). Issue 6 (June 2020) - Mullapudi, Naga Amulya; Vinayagam, Raman; Clayden-Lewis, Clare; Kothari, Ashutosh; Douvetzemis, Stergios; Sircar, Tapan; Vidya, R.; Laws, Siobhan