title: Case 2: A 20-month-old boy with asymmetric growth of the legs.
authors.affiliation: Department of Medical Chemistry and Biochemistry Medical University; Genetic-Medico Diagnostic Laboratory Genica.
authors.forename: Mihaela
authors.initials: M
authors.lastname: Lukova
authors.affiliation: Department of Medical Chemistry and Biochemistry Medical University; Genetic-Medico Diagnostic Laboratory Genica.
authors.forename: Tanya
authors.initials: T
authors.lastname: Kadiyska
authors.affiliation: Department of Cardiology, University Hospital Lozenets.
authors.forename: Alexander
authors.initials: A
authors.lastname: Nossikoff
authors.affiliation: Department of Medical Chemistry and Biochemistry, Medical University.
authors.forename: Albena
authors.initials: A
authors.lastname: Todorova
authors.affiliation: Genetic-Medico Diagnostic Laboratory Genica, Sofia.
authors.forename: Tihomir
authors.initials: T
authors.lastname: Todorov
authors.affiliation: Diagnostic and Consulting Center, Veliko Turnovo.
authors.forename: Veselin
authors.initials: V
authors.lastname: Mihaylov
authors.affiliation: Department of Medical Chemistry and Biochemistry Medical University, Sofia, Bulgaria.
authors.forename: Vanyo
authors.initials: V
authors.lastname: Mitev