Low bone mineral density in Crohn's disease, but not in ulcerative colitis, at diagnosis

A short questionnaire for the measurement of habitual physical activity in epidemiological studies

J.A.H. Baecke, J. Burema, J.E.R. Frijters · American Journal of Clinical Nutrition · 1982 · 4K citations

Education, Health Sciences, Epidemiology +13

Development of a Crohn's disease activity index. National Cooperative Crohn's Disease Study.

William R. Best, Jack M. Becktel, John W. Singleton et al. · PubMed · 1976 · 3.2K citations

Medicine, Clinical Sciences, Internal Medicine +15

Development of a Crohn's Disease Activity Index

William R. Best, Jack M. Becktel, John W. Singleton et al. · Gastroenterology · 1976 · 3.2K citations

Veterinary Medicine, Clinical Sciences, Internal Medicine +12

Practical Clinical Biochemistry

Journal of the American Medical Association · 1955 · 1.5K citations

Pharmacy, Biochemistry, Toxicology +13

Highly sensitive two-site immunoradiometric assay of parathyrin, and its clinical utility in evaluating patients with hypercalcemia.

S R Nussbaum, R Zahradnik, Jeffrey R. Lavigne et al. · Clinical Chemistry · 1987 · 813 citations

Medicine, Biochemistry, Endocrinology +16