Anand, A CSubramanian, A R1983-05-012009-05-311983-05-012009-05-311983-05-01Anand AC, Subramanian AR. Diurnal variations in asthma. Journal of the Association of Physicians of India. 1983 May; 31(5): 293-6http://imsear.searo.who.int/handle/123456789/92410engAdultAgedAsthma --physiopathologyCircadian RhythmFemaleHumansMaleMiddle AgedPeak Expiratory Flow RatePrognosisVital CapacityComparative Study