@article{song_lin_wei_lin_yen_jan_2009, 
  title={Surplus Value of Hip Adduction in Leg-Press Exercise in Patients With Patellofemoral Pain Syndrome: A Randomized Controlled Trial}, 
  volume={89}, 
  DOI={10.2522/ptj.20080195}, 
  publisher={Oxford University Press (OUP)}, 
  author={Song and Lin and Wei and Lin and Yen and Jan}, 
  year={2009}, 
  month={May}
  }