RT Book, Section A1 Rudolph, Colin D. A1 Rudolph, Abraham M. A1 Lister, George E. A1 First, Lewis R. A1 Gershon, Anne A. SR Print(0) ID 6724279 T1 Chapter 134. Principles of Inborn Errors of Metabolism T2 Rudolph's Pediatrics, 22e YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-149723-7 LK accesspediatrics.mhmedical.com/content.aspx?aid=6724279 RD 2024/04/18 AB Over 400 human diseases that are due to inborn errors of metabolism are now recognized, and this number is constantly increasing. However, the incidence of inborn errors may well be underestimated, because diagnostic errors are frequent. Despite the relative abundance of new case reports, there is considerable evidence that many of these disorders remain undetected or misdiagnosed. Several factors conspire to make the clinical diagnosis of inborn errors of metabolism (IEM) difficult.