We also performed a multigroup analysis by dividing the BCa group by tumor grade [low‐grade (n = 14) and high‐grade (n = 35)] and found that patients with low‐grade and high‐grade BCa had significantly higher uEV‐EIF2S1 expression compared to individuals without BCa (Bonferroni‐corrected Mann–Whitney U test, Figure S2A). The gene discussed is EIF2S1; the disease is neoplasm.