Title: Prevalence of Lower Limb Traction Apophysitis among Children with Low Vitamin D and Secondary Hyperparathyroidism - Ultra Sonographic Study
Authors: Ahmed Fathy Abogamal, Eman Mahmoud, Ahmed Aly Abdelaziz, Sameh Abdelatif, Mohammed Ahmed Hasuna Hemeda, Ahmed Fathy Abdalaziz, Maged A H Shoukeer

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