APA (7th ed.) Citation

Pao, C., Rybak, M. E., & Sternberg, M. R. Principal Components Analysis of Spot Urine Caffeine and Caffeine Metabolites Identifies Promising Exposure Biomarkers of Caffeine and Theobromine Intake in a Cross-Sectional Survey of the United States Population (National Health and Nutrition Examination Survey 2009–2014). Elsevier.

Chicago Style (17th ed.) Citation

Pao, Ching-I, Michael E. Rybak, and Maya R. Sternberg. Principal Components Analysis of Spot Urine Caffeine and Caffeine Metabolites Identifies Promising Exposure Biomarkers of Caffeine and Theobromine Intake in a Cross-Sectional Survey of the United States Population (National Health and Nutrition Examination Survey 2009–2014). Elsevier.

MLA (9th ed.) Citation

Pao, Ching-I, et al. Principal Components Analysis of Spot Urine Caffeine and Caffeine Metabolites Identifies Promising Exposure Biomarkers of Caffeine and Theobromine Intake in a Cross-Sectional Survey of the United States Population (National Health and Nutrition Examination Survey 2009–2014). Elsevier.