1 Table of Contents: “... by Vitamin D -- 15 Vitamin D Assays and Their Clinical Utility -- 16 Rickets and Vitamin D Deficiency -- 17...”

2 Table of Contents: “... Health Consequences -- Dietary Calcium Deficiency and Rickets -- Vitamin D in Fracture Prevention...”

3 “... with the scourge of rickets. Although solariums were becoming common in the early 1900s and phototherapy...”

4 “... of medical problems across the age spectrum, including rickets, growth retardation, osteoporosis...”