Other groups have reported that the concentration of EpCAM‐positive EVs collected from breast cancer patients increased from 6.36 × 108 EVs/μL at Stage I‐II to 8.95 × 108 EVs/μL at Stage III–IV (Kashefi‐Kheyrabadi et al., 2020). The gene discussed is EPCAM; the disease is breast carcinoma.