TY  - SER
AU  - 
AU  - 
AU  - 
AU  - 
AU  - 
AU  - 
TI  - Changes in deep abdominal muscle thickness during common trunk-strengthening exercises using ultrasound imaging
PY  - 2008///
CY  - Estados Unidos: 
PB  - Journal of orthopaedic & sport physical therapy
ER  -