Heinrich Koertke

Vitamin D supplementation enhances the beneficial effects of weight loss on cardiovascular disease risk markers

Armin Zittermann, Sabine Frisch, Heiner K. Berthold et al. · American Journal of Clinical Nutrition · 2009 · 554 citations

Obesity, Metabolic Syndrome, Nutrition +10

Effect of Vitamin D Supplementation on Testosterone Levels in Men

Stefan Pilz, Sabine Frisch, Heinrich Koertke et al. · Hormone and Metabolic Research · 2010 · 326 citations · Full text

Nutrition, Gynecology, Female Reproductive Function +21

Circulating Calcitriol Concentrations and Total Mortality

Armin Zittermann, Stefanie Schulze Schleithoff, Sabine Frisch et al. · Clinical Chemistry · 2009 · 130 citations · Full text

INR Self-Management Permits Lower Anticoagulation Levels After Mechanical Heart Valve Replacement

Heinrich Koertke, Kazutomo Minami, Dietmar Boethig et al. · Circulation · 2003 · 101 citations

Low-dose oral anticoagulation in patients with mechanical heart valve prostheses: final report from the early self-management anticoagulation trial II

Heinrich Koertke, Armin Zittermann, Gero Tenderich et al. · European Heart Journal · 2007 · 93 citations · Full text