title: The rule of two-thirds in thyroid epidemiology.
authors.affiliation: Department of Endocrinology, Bharti Hospital, Karnal, Haryana, India.
authors.forename: Sanjay
authors.initials: S
authors.lastname: Kalra
authors.affiliation: CEO, Chellaram Diabetes Institute, Pune, Maharashtra, India.
authors.forename: A G
authors.initials: AG
authors.lastname: Unnikrishnan
authors.affiliation: Department of Endocrinology, Golden Hospital, Jalandhar City, Punjab, India.
authors.forename: Vipin
authors.initials: V
authors.lastname: Talwar