Smartphone based optical biosensor for the detection of urea in saliva

Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the Global Burden of Disease Study 2010

Rafael Lozano, Mohsen Naghavi, Kyle J Foreman et al. · The Lancet · 2012 · 14.3K citations · Full text

Public Health, Health Sciences, Epidemiologic Methods +16

Phenol-hypochlorite reaction for determination of ammonia

Muriel W. Weatherburn · Analytical Chemistry · 1967 · 4.1K citations

Natural Sciences, Chemistry, Analytical Chemistry +5

The contribution of chronic kidney disease to the global burden of major noncommunicable diseases

William G. Couser, Giuseppe Remuzzi, Shanthi Mendis et al. · Kidney International · 2011 · 1.5K citations · Full text

Medicine, Internal Medicine, Nephrology +14

Automated and Manual Direct Methods for the Determination of Blood Urea

Walton H. Marsh, Benjamin P. Fingerhut, Henry Miller · Clinical Chemistry · 1965 · 1.1K citations

Life Sciences, Biochemistry, Diagnostic Microbiology +6

Urea-specific enzyme electrode

George G. Guilbault, Joseph G. Montalvo · Journal of the American Chemical Society · 1969 · 376 citations

Natural Sciences, Biochemistry, Chemistry +9