Effects of low-dose tamoxifen on breast cancer biomarkers Ki-67, estrogen and progesterone receptors

Table 2 Percentage of nuclei stained by estrogen receptor (1D5) in Group A (Control) before and after 14 days (magnified 400×).

PATIENT	Control (before) (% stained cells)	Control (after 14 days) (% stained cells)
1	45.61	33.82
2	46.31	33.45
3	25.63	30.48
4	47.41	44.82
5	60.63	55.96
6	33.89	48.78
7	88.92	90.81
8	33.59	29.51
9	30.25	14.65
10	15.47	25.26
11	30.12	22.23
12	100.00	97.01
13	81.12	80.58
14	51.25	53.69
15	16.05	20.15
16	95.87	98.79
17	80.56	75.89
18	45.06	22.79
19	89.07	90.46
20	98.19	98.89
MEAN	55.75	53.40