Corrigendum to: Effect of primary percutaneous coronary intervention on in-hospital outcomes among active cancer patients presenting with ST-elevation myocardial infarction: a propensity score matching analysis. Issue 9 (30th March 2021) - Mohamed, Mohamed O; Van Spall, Harriette G C; Kontopantelis, Evangelos; Alkhouli, Mohamad; Barac, Ana; Elgendy, Islam Y; Khan, Safi U; Shing Kwok, Chun; Shoaib, Ahmad; Bhatt, Deepak L; Mamas, Mamas A