The Effect of Cold Ischemia Time and/or Formalin Fixation on Estrogen Receptor, Progesterone Receptor, and Human Epidermal Growth Factor Receptor-2 Results in Breast Carcinoma

Table 3

Expression of progesterone receptors in core needle biopsy and excision specimens.

			Biopsy
		Positive	Negative	Total
Excision	Positive	117	5	122
	Negative	9	55	64
	Total	126	60	186