1. Elder JS. Urinary tract infections. Kliegman RM, Stanton BF, St. Geme JW, Schor NF, Behrman RE, editors. Nelson textbook of pediatrics. 20th ed. Philadelphia (PA): Elsevier Saunders, 2016;:2554–2563.
2. Bensman A, Dunand O, Ulinski T. Urinary tract infection. Avner ED, Harman WE, Niaudet P, Yoshikawa N, editors. Pediatric nephrology. 6th ed. Berlin: Springer, 2009;:1007–1025.
3. Wald ER. Cystitis and pyelonephritis. Feigin RD, Cherry J, Demmler-Harrison GL, Kaplan SL, editors. Feigin and Cherry's text book of infectious diseases. 6th ed. Philadelphia (PA): Elsevier Saunders, 2009;:554–569.
4. Ayazi P, Mahyar A, Daneshi MM, Jahani Hashemi H, Pirouzi M, Esmailzadehha N. Comparison of procalcitonin and C-reactive protein tests in children with urinary tract infection. Iran J Pediatr 2009;19:381–386.
5. Ayazi P, Moshiri SA, Mahyar A, Moradi M. The effect of vitamin A on renal damage following acute pyelonephritis in children. Eur J Pediatr 2011;170:347–350.
6. Stokland E, Hellström M, Jacobsson B, Jodal U, Sixt R. Renal damage one year after first urinary tract infection: role of dimercaptosuccinic acid scintigraphy. J Pediatr 1996;129:815–820.
7. Rushton HG. Urinary tract infections in children. Epidemiology, evaluation, and management. Pediatr Clin North Am 1997;44:1133–1169.
8. Leonardo CR, Filgueiras MF, Vasconcelos MM, Vasconcelos R, Marino VP, Pires C, et al. Risk factors for renal scarring in children and adolescents with lower urinary tract dysfunction. Pediatr Nephrol 2007;22:1891–1896.
10. Jorde R, Sollid ST, Svartberg J, Joakimsen RM, Grimnes G, Hutchinson MY. Prevention of urinary tract infections with vitamin D supplementation 20,000 IU per week for five years. Results from an RCT including 511 subjects. Infect Dis (Lond) 2016;48:823–828.
11. Katikaneni R, Ponnapakkam T, Ponnapakkam A, Gensure R. Breast-feeding does not protect against urinary tract infection in the first 3 months of life, but vitamin D supplementation increases the risk by 76%. Clin Pediatr (Phila) 2009;48:750–755.
12. Guillot X, Semerano L, Saidenberg-Kermanac'h N, Falgarone G, Boissier MC. Vitamin D and inflammation. Joint Bone Spine 2010;77:552–557.
13. Holick MF. Vitamin D: extraskeletal health. Endocrinol Metab Clin North Am 2010;39:381–400.
15. Hewison M. Antibacterial effects of vitamin D. Nat Rev Endocrinol 2011;7:337–345.
16. Wilkinson RJ, Llewelyn M, Toossi Z, Patel P, Pasvol G, Lalvani A, et al. Influence of vitamin D deficiency and vitamin D receptor polymorphisms on tuberculosis among Gujarati Asians in west London: a case-control study. Lancet 2000;355:618–621.
17. Muhe L, Lulseged S, Mason KE, Simoes EA. Case-control study of the role of nutritional rickets in the risk of developing pneumonia in Ethiopian children. Lancet 1997;349:1801–1804.
18. Laaksi I, Ruohola JP, Tuohimaa P, Auvinen A, Haataja R, Pihlajamäki H, et al. An association of serum vitamin D concentrations <40 nmol/L with acute respiratory tract infection in young Finnish men. Am J Clin Nutr 2007;86:714–717.
19. McNally JD, Leis K, Matheson LA, Karuananyake C, Sankaran K, Rosenberg AM. Vitamin D deficiency in young children with severe acute lower respiratory infection. Pediatr Pulmonol 2009;44:981–988.
20. Schluter P, Carter S, Kokaua J. Indices and perception of crowding in Pacific households domicile within Auckland, New Zealand: findings from the Pacific Islands Families Study. N Z Med J 2007;120:U2393
21. Holick MF. Vitamin D deficiency. N Engl J Med 2007;357:266–281.
22. Nseir W, Taha M, Nemarny H, Mograbi J. The association between serum levels of vitamin D and recurrent urinary tract infections in premenopausal women. Int J Infect Dis 2013;17:e1121–e1124.
25. Tekin M, Konca C, Celik V, Almis H, Kahramaner Z, Erdemir A, et al. The association between vitamin D levels and urinary tract infection in children. Horm Res Paediatr 2015;83:198–203.
27. Liu PT, Stenger S, Li H, Wenzel L, Tan BH, Krutzik SR, et al. Toll-like receptor triggering of a vitamin D-mediated human antimicrobial response. Science 2006;311:1770–1773.
28. Wang TT, Nestel FP, Bourdeau V, Nagai Y, Wang Q, Liao J, et al. Cutting edge: 1,25-dihydroxyvitamin D3 is a direct inducer of antimicrobial peptide gene expression. J Immunol 2004;173:2909–2912.
30. White JH. Vitamin D as an inducer of cathelicidin antimicrobial peptide expression: past, present and future. J Steroid Biochem Mol Biol 2010;121:234–238.
31. Chromek M, Slamová Z, Bergman P, Kovács L, Podracká L, Ehrén I, et al. The antimicrobial peptide cathelicidin protects the urinary tract against invasive bacterial infection. Nat Med 2006;12:636–641.
33. Zasloff M. Antimicrobial peptides, innate immunity, and the normally sterile urinary tract. J Am Soc Nephrol 2007;18:2810–2816.
35. Deluca HF, Cantorna MT. Vitamin D: its role and uses in immunology. FASEB J 2001;15:2579–2585.