Question 1

• Image reproduces with permission from Kaplan FS, Xu M, Seemann P, et al. Hum Mutat 2009;30(3):379–90. © Copyright 2009. Published by John Wiley and Sons.
• Kaplan FS, Glaser DL, Shore EM, et al. Clin Rev Bone Miner Metab 2005; 3: 183–188.

Question 2

• Tiwari V, Behera P, Sarawagi R, et al. Cureus 2018;10(7):e2955. © Copyright 2018. CC-BY 3.0.
• Pignolo RJ, Ramaswamy G, Fong JT, et al. Appl Clin Genet 2015;8:37–48.

Question 3

• Dibello D, Di Carlo V, Colin G, et al. Ital J Pediatr 2020;46(1):78. Copyright © 2020, The Author(s). CC-BY 3.0.

Question 4

• Pignolo RJ, Shore EM, Kaplan FS. Orphanet J Rare Dis 2011;6:80. Copyright © 2011. CC BY 2.0.
• Kitterman JA, Kantanie S, Rocke, Kaplan FS. Pediatrics 20\05;116:e654–e661.

Question 5

• Image reproduces with permission from Gore AI, Spencer JP. Am Fam Physician 2004;69(4):865–72. © Copyright 2004. Published by American Academy of Family Physicians.
• Kitterman JA, Kantanie S, Rocke, Kaplan FS. Pediatrics 2005;116:e654–e661.

Question 6

• Image reproduces with permission from Sun Y, Xia W, Jiang Y, et al. Calcif Tissue Int 2009;84(5):361–5. © Copyright 2009. Published by Springer Nature Switzerland AG.

Question 7

• Image reproduces with permission from Kumagai K, Motomura K, Egashira M, et al. Skeletal Radiol 2008;37:563–567. © Copyright 2008. Published by Springer Nature Switzerland AG.

Question 8

• Image reproduces with permission from Rashid U, Bari A, Maqsood A, et al. J Coll Physicians Surg Pak 2016;26(2):154–5. © Copyright 2016. Published by Journal of the College of Physicians & Surgeons Pakistan

Question 9

• Image reproduces with permission from Butterworth ML, Marcoux JT. Juvenile Hallux Abductovalgus. In: Butterworth M., Marcoux J. (eds) The Pediatric Foot and Ankle. Springer, Cham, 2020. © Copyright 2020. Published by Springer Nature Switzerland AG.

Question 10

• Image reproduces with permission from Kaplan FS, Xu M, Seemann P, et al. Hum Mutat 2009;30(3):379–90. © Copyright 2009. Published by John Wiley and Sons.