?:authorAffiliation
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[\'National Institute of Epidemiology, Chennai, India. Electronic address: nagarajanramya55@gmail.com.\', \'Department of Community Medicine, ESIC medical College and PGIMSR, Chennai, India.\', \'Department of Community Medicine, Bowring and Lady Curzon Medical College and Research Institute, Bengaluru, India.\', \'Department of Orthopedics, Institute of medical Sciences, Banaras Hindu University, Varanasi, India.\']
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