ID	Database	Citation
9783642403361	ISBN	"Physician’s Guide to the Diagnosis, Treatment, and Follow-Up of Inherited Metabolic Diseases [Internet]. Blau N, Duran M, Gibson KM, Dionisi-Vici C. Springer; 2014. 0 p. Available from: https://books.google.com/books/about/Physician_s_Guide_to_the_Diagnosis_Treat.html?hl=&id=wJRBnwEACAAJ <a href=""https://openlibrary.org/search?isbn=9783642403361"" target=""_blank"" class=""external"" rel=""nofollow"">OpenLibrary</a> <a href=""https://www.worldcat.org/search?qt=wikipathways&q=isbn%3A9783642403361"" target=""_blank"" class=""external"" rel=""nofollow"">Worldcat</a>"
6572916	Pubmed	"Biosynthesis of tetrahydrobiopterin by de novo and salvage pathways in adrenal medulla extracts, mammalian cell cultures, and rat brain in vivo. Nichol CA, Lee CL, Edelstein MP, Chao JY, Duch DS. Proc Natl Acad Sci U S A. 1983 Mar;80(6):1546–50.  <a href=""http://www.ncbi.nlm.nih.gov/pubmed/6572916"" target=""_blank"" class=""external"" rel=""nofollow"">PubMed</a> <a href=""https://europepmc.org/abstract/MED/6572916"" target=""_blank"" class=""external"" rel=""nofollow"">Europe PMC</a> <a href=""https://scholia.toolforge.org/pubmed/6572916"" target=""_blank"" class=""external"" rel=""nofollow"">Scholia</a>"
21550412	Pubmed	"Synthesis and recycling of tetrahydrobiopterin in endothelial function and vascular disease. Crabtree MJ, Channon KM. Nitric Oxide. 2011 Aug 1;25(2):81–8.  <a href=""http://www.ncbi.nlm.nih.gov/pubmed/21550412"" target=""_blank"" class=""external"" rel=""nofollow"">PubMed</a> <a href=""https://europepmc.org/abstract/MED/21550412"" target=""_blank"" class=""external"" rel=""nofollow"">Europe PMC</a> <a href=""https://scholia.toolforge.org/pubmed/21550412"" target=""_blank"" class=""external"" rel=""nofollow"">Scholia</a>"
30372766	Pubmed	"Inherited Disorders of Neurotransmitters: Classification and Practical Approaches for Diagnosis and Treatment. Brennenstuhl H, Jung-Klawitter S, Assmann B, Opladen T. Neuropediatrics. 2019 Feb;50(1):2–14.  <a href=""http://www.ncbi.nlm.nih.gov/pubmed/30372766"" target=""_blank"" class=""external"" rel=""nofollow"">PubMed</a> <a href=""https://europepmc.org/abstract/MED/30372766"" target=""_blank"" class=""external"" rel=""nofollow"">Europe PMC</a> <a href=""https://scholia.toolforge.org/pubmed/30372766"" target=""_blank"" class=""external"" rel=""nofollow"">Scholia</a>"