Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, ENVIRONMENTAL EXPOSURE and its effects, disease diagnosis; METABOLIC PROCESSES; SUBSTANCE ABUSE; PREGNANCY; cell line development; EPIDEMIOLOGIC STUDIES; etc.

Synonyms: Marker, Biological, Markers, Biologic, Biological Markers, Viral Marker, Surrogate Endpoints, Surrogate Endpoint, Clinical Markers, Clinical Marker, Serum Markers, Markers, Biological, Biochemical Markers, Marker, Laboratory, Biologic Marker, Immune Marker, Marker, Clinical, Surrogate End Points, Surrogate Markers, Laboratory Markers, Surrogate End Point, Marker, Surrogate, 0, Marker, Immune, Markers, Clinical, Biomarkers, Marker, Serum, Markers, Viral, Biologic Markers, Biomarker, Serum Marker, Markers, Surrogate, Biological Marker, Laboratory Marker, Surrogate Marker, End Point, Surrogate, Immunologic Markers, Biochemical Marker, Markers, Laboratory, Endpoints, Surrogate, Viral Markers, End Points, Surrogate, Endpoint, Surrogate, Markers, Immunologic, Marker, Immunologic, Marker, Biologic, Markers, Biochemical, Marker, Biochemical, Immunologic Marker, Markers, Serum, Markers, Immune, Marker, Viral, Immune Markers