Circulating Resistin Levels Are Not Associated with Obesity or Insulin Resistance in Humans and Are Not Regulated by Fasting or Leptin Administration: Cross-Sectional and Interventional Studies in Normal, Insulin-Resistant, and Diabetic SubjectsJennifer H. Lee, Christos S. Mantzoros, Christine Orlova et al.|The Journal of Clinical Endocrinology & Metabolism|2003Cited by 545