Comparative study designs and what they show

• 1 September 2000
• journal article
• research article
• Published by Elsevier in Respiratory Medicine
• Vol. 94, S40-S43
• https://doi.org/10.1016/s0954-6111(00)90124-0

Abstract

Keywords

• LUNG
• FOLD
• STUDY DESIGNS
• CLINICAL EFFECT
• CAREFULLY CONDUCTED
• IMPROVED CLINICAL
• SUBSTANTIAL
• DIFFERENT INHALERS