LONDON, England, March 16 -- Thorax, a medicine journal that says it features respiratory medicine, critical care, paediatrics, immunology, pharmacology, pathology and surgery from the British Thoracic Society, published research articles on the following topics in its April 2023 edition:

Chronic obstructive pulmonary disease:

* Automatic oxygen titration versus constant oxygen flow rates during walking in COPD: a randomised controlled, double-blind, crossover trial