title: Diagnosing sputum/smear negative pulmonary tuberculosis.
authors.affiliation: Tuberculosis Control Officer (Rtd), Government Chest Clinic. 68, Ambour Sabi, Pondicherry 605001, India. E-mail: vengsiva@gmaiil.com.
authors.forename: Sivaraman
authors.initials: S
authors.lastname: Vengattaraman