In reply: Uncertainties in the relationship between high mean platelet volume and acute kidney injury after cardiac surgery. - Ramakrishnan A; Zheng C; Fontes ML; Lombard FW; Woolard AA; Shi Y; Shotwell MS; Billings FT 4th; Pretorius M; Wanderer JP; Vyas R; Absi TS; et al. (Canadian journal of anaesthesia = Journal canadien d'anesthesie, 2021)