TY - RPRT TI - Using hierarchical unsupervised learning to integrate and reduce multi-level and multi-paraspinal muscle MRI data in relation to low back pain AU - Abel Torres-Espin AU - Anastasia Keller AU - Gabriel T. A. Johnson AU - Aaron J. Fields AU - Roland Krug AU - Adam R. Ferguson AU - Alan R. Hargens AU - Conor W. O’Neill AU - Jeffrey C. Lotz AU - Jeannie F. Bailey UR - https://ntrs.nasa.gov/citations/18815386634638 ID - 18815386634638 ER -