Andersson, M., Moberg, L., Svantesson, U., Sundbom, A., Johansson, H., & Emtner, M. (2011). Measuring walking speed in COPD: Test-retest reliability of the 30-metre walk test and comparison with the 6-minute walk test. Prim Care Respir J.

Andersson, Mikael, Linda Moberg, Ulla Svantesson, Ann Sundbom, Henrik Johansson, ja Margareta Emtner. "Measuring Walking Speed in COPD: Test-retest Reliability of the 30-metre Walk Test and Comparison With the 6-minute Walk Test." Prim Care Respir J 2011.

Andersson, Mikael, et al. "Measuring Walking Speed in COPD: Test-retest Reliability of the 30-metre Walk Test and Comparison With the 6-minute Walk Test." Prim Care Respir J 2011.