underrepresentation

Underrepresentation of patients 65 years of age or older in cancer-treatment trials.
Underrepresentation of renal disease in randomized controlled trials of cardiovascular disease.
Women's underrepresentation in science: Sociocultural and biological considerations.
...causes of women's underrepresentation in science.
Overrepresentation and underrepresentation of African Americans and Latinos as lawbreakers on television news
Women and Information Technology: Research on Underrepresentation
VP16-dependent association of chromatin-modifying coactivators and underrepresentation of histones at immediate-early gene promoters...
Women and information technology: Research on underrepresentation
Exploring Underrepresentation: The Case of Faculty of Color in the Midwest
Underrepresentation of the risk and incidence of anaphylaxis to foods.