Jain, S KGupta, C K1967-06-012009-05-271967-06-012009-05-271967-06-01Jain SK, Gupta CK. Lung function studies in healthy men and women over forty. Indian Journal of Medical Research. 1967 Jun; 55(6): 612-9http://imsear.searo.who.int/handle/123456789/24097engAdultAge FactorsAgedAgingFemaleHumansMaleMiddle AgedRespiratory Function TestsSex FactorsStatistics as TopicLung function studies in healthy men and women over forty.Journal Article