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Table 1 Histological data of the tumor samples (n = 116)

From: Antitumor activity of zoledronic acid in primary breast cancer cells determined by the ATP tumor chemosensitivity assay

Parameter N (%)
Tumor size
pT1 52/115 (45.2)
pT2-4 63/115 (54.8)
Nodal status
N0 72/111 (64.9)
N1 21/111 (18.9)
N2 10/111 (9.0)
N3 8/111 (7.2)
Metastasis
M0 109/113 (96.4)
M1 4/113 (3.6)
Grading
G1 6/112 (5.3)
G2 65/112 (58.0)
G3 41/112 (36.7)
Estrogen receptor
pos 93/112 (83.0)
neg 23/112 (17.0)
Progesterone receptor
pos 88/112 (78.5)
neg 28/112 (21.5)
HER2
pos 36/114 (31.5)
neg 78/114 (68.5)