Gunning, M, Nolan, J, Kontopantelis, E, Bertrand, O, Kwok, CS, Rao, S, Gilchrist, I, Potts, J, Nagaraja, V, Mamas, M, "Relation of Length of Stay to Unplanned Readmissions For Patients Who Undergo Elective Percutaneous Coronary Intervention", The American Journal of Cardiology, 2019