1. Global Initiative for Asthma. Global strategy for asthma management and prevention.
http://www.ginasthma.org
, 2012.
2. Aggarwal AN, Agarwal R, Gupta D, Jindal SK . Validation of a Hindi translation of Mini Asthma Quality of Life Questionnaire in north Indian patients with bronchial asthma. Indian J Chest Dis Allied Sci 2010; 52: 83–89.
3. Saxena S, Chandiramani K, Bhargava R . WHOQOL-Hindi: a questionnaire for assessing quality of life in health care settings in India. World Health Organization Quality of Life. Natl Med J India 1998; 11: 160–165.
4. Saxena S, Quinn K, Sharan P, Naresh B, Yuantao H, Power M . Cross-linguistic equivalence of WHOQOL-100: a study from North India. Qual Life Res 2005; 14: 891–897.
5. Tennant A, McKenna SP, Hagell P . Application of Rasch analysis in the development and application of quality of life instruments. Value Health 2004; 7 (Suppl 1): S22–S26.