Ang‐2 has been mostly well‐studied in patients with sepsis, where its plasma concentration has been shown by multiple investigators to predict pulmonary vascular leak and ARDS (Agrawal et al., 2013; Heijden et al., 2008; Parikh et al., 2006; Reilly et al., 2014). The gene discussed is ANGPT2; the disease is acute respiratory distress syndrome.