CHEST Journal · 1988 · 94 citations · 19 references
PharmacyPharmacologyPharmacotherapyClinical PharmacologyAcute Asthma ExacerbationAsthma ManagementAsthma PharmacotherapyBronchodilator TherapyAcute Asthma ManagementSevere Asthma ManagementSevere Asthma Treatment
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Statistics and ethics in medical research: III How large a sample?
David Altman · BMJ · 1980 · 590 citations · Full text
Ipratropium bromide in acute asthma.
Michael J. Ward, P. H. Fentem, William H. Smith et al. · BMJ · 1981 · 156 citations · Full text