FIGURE 2 DDR1 expression is evaluated in diverse stages based on clinical characteristics by UALCAN database. Analysis of DDR1 expression based on sample types (A) , gender (B) , TP53 mutation status (C) , individual cancer stages (D) , nodal metastasis status (E) , tumor grades (F) , age (G) , and histological subtypes (H) . Marking the central point is the median. [N0, no regional lymph node metastasis; N1, metastases in one to three axillary lymph nodes; N2, metastases in four to nine axillary lymph nodes; N3, metastases in 10 or more axillary lymph nodes; Grade 1, well differentiated (low grade); Grade 2, moderately differentiated (intermediate grade); Grade 3, poorly differentiated (high grade); Grade 4, undifferentiated (high