Sichletidis, L., Spyratos, D., Papaioannou, M., Chloros, D., Tsiotsios, A., Tsagaraki, V., & Haidich, A. (2011). A combination of the IPAG questionnaire and PiKo-6(®) flow meter is a valuable screening tool for COPD in the primary care setting. Prim Care Respir J.

Sichletidis, Lazaros, Dionisios Spyratos, Maria Papaioannou, Diamantis Chloros, Anastasios Tsiotsios, Vasiliki Tsagaraki, and Anna-Bettina Haidich. "A Combination of the IPAG Questionnaire and PiKo-6(®) Flow Meter Is a Valuable Screening Tool for COPD in the Primary Care Setting." Prim Care Respir J 2011.

Sichletidis, Lazaros, et al. "A Combination of the IPAG Questionnaire and PiKo-6(®) Flow Meter Is a Valuable Screening Tool for COPD in the Primary Care Setting." Prim Care Respir J 2011.