[1] All India Inst Med Sci, New Delhi, India
[2] UCL Queen Sq Inst Neurol, Dept Neuromuscular Dis, London, England
[3] Natl Hosp Neurol & Neurosurg, NHS Highly Specialised Serv Rare Mitochondrial Di, Queen Sq Ctr Neuromuscular Dis, London, England
[4] Ctr DNA Fingerprinting & Diagnost, Hyderabad, India
[5] UCL, London, England
[6] Ctr Cellular Mol Biol, Hyderabad, India
[7] Newcastle Univ, John Walton Muscular Dystrophy Res Ctr, Newcastle Upon Tyne, Tyne & Wear, England
[8] Newcastle Hosp NHS Fdn Trust, Newcastle Upon Tyne, Tyne & Wear, England