Fig 3. Expression of miR-let-7a-5p and miR-3928 in different groups of HNC patients (n = 150).

HNC patients were categorized according to clinical stage (T) and the presence [N+] and absence [N0] of lymph node metastasis. Significance of two-sided p-values indicated as follows: ** p < 0.01, **** P<0.0001 (t test).