WNT7A and neoplasm: High WNT7A expression is also associated with ER− versus ER+ tumours (unpaired t-test for unequal s.d. with Welch's correction, P=0.0002), triple-negative versus non-triple-negative tumours (unpaired t-test for unequal s.d. with Welch's correction, P=0.0031) and primary tumours versus matched normal tissue (n=22 pairs; paired t-test, P=0.0013).