Variables No. of cores %
Organs used in TMA 643  
Colon 4 0.7
Lymph node 26 4.0
Mammary gland 596 92.7
Rectum 11 1.7
Thyroid 6 0.9
Grade 570  
I 54 9.5
II 116 20.3
III 400 70.2
Molecular subtypes 488  
Luminal A 143 29.3
Luminal B 54 11.1
HER2-positive 68 13.9
Triple-negative 223 45.7
Table 1: Clinico-pathological data of tissues used in TMAs.