1. Estrogen and progesterone receptor expression in patients with uterine smooth muscle tumors 
Klaus Bodner, M.D., Barbara Bodner-Adler, M.D., Oliver Kimberger, M.D., Klaus Czerwenka, M.D., Klaus Mayerhofer, M.D. 
Fertility and Sterility 
Volume 81, Issue 4, Pages (April 2004)
DOI: /j.fertnstert

2. FIGURE 1
The staining intensity for estrogen receptor expression in uterine leiomyosarcoma (red bar), leiomyoma (green bar), and smooth muscle tumor of uncertain malignant potential (yellow bar) was evaluated to the percentage of stained cells: − negative (less than 10% were stained), + weak positive (11%–50% of the cells were stained), ++ moderate positive (51%–80% of the cells were stained), and +++ strong positive (more than 80% of the tumor cells were stained).
Bodner. Uterine smooth muscle tumors and steroid receptor expression. Fertil Steril 2004.
Fertility and Sterility  , DOI: ( /j.fertnstert )

3. FIGURE 2
The staining intensity for progesterone receptor expression in uterine leiomyosarcoma (red bar), leiomyoma (green bar), and smooth muscle tumor of uncertain malignant potential (yellow bar) was evaluated to the percentage of stained cells: − negative (less than 10% were stained), + weak positive (11%–50% of the cells were stained), ++ moderate positive (51%–80% of the cells were stained), and +++ strong positive (more than 80% of the tumor cells were stained).
Bodner. Uterine smooth muscle tumors and steroid receptor expression. Fertil Steril 2004.
Fertility and Sterility  , DOI: ( /j.fertnstert )