Figure 4From: Effect of continuous statistically standardized measures of estrogen and progesterone receptors on disease-free survival in NCIC CTG MA.12 Trial and BC CohortHistogram of the NCIC CTG MA.12 qPCR (log 2 ) PgR results for IHC ER and/or PgR >0: N = 262. ER, estrogen receptor; IHC, immunohistochemistry; PgR, progesterone receptor.Back to article page