Fig. 1
From: Pregabalin for chronic cough due to lung cancer: randomized, double-blind, placebo-controlled trial

The process of screening, enrollment, randomization, treatment, and analysis of the patients in the cough study.
From: Pregabalin for chronic cough due to lung cancer: randomized, double-blind, placebo-controlled trial

The process of screening, enrollment, randomization, treatment, and analysis of the patients in the cough study.