title: Eggshell calcification.
authors.affiliation: Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, New Delhi, India.
authors.forename: Manu
authors.initials: M
authors.lastname: Madan
authors.affiliation: Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, New Delhi, India.
authors.forename: Richa
authors.initials: R
authors.lastname: Mittal
authors.affiliation: Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, New Delhi, India.
authors.forename: Pawan
authors.initials: P
authors.lastname: Gupta
authors.affiliation: Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, New Delhi, India.
authors.forename: Sunil K
authors.initials: SK
authors.lastname: Chhabra