Multinomial Logistic Regression Analysis to Show Incremental Benefit of Each Optoacoustic US Feature to Distinguish Luminal Cancers (A and B) from Triple-negative and HER2+ Subtypes in 532 Invasive Cancers (reproduced from (Dogan et al., 2019) with permission from The Radiological Society of North America). The gene discussed is ERBB2; the disease is cancer.