@article{UeberallMuellerSchwefeWigandetal.2016,
  author    = {Michael A {\"U}berall and Gerhard H. H. M{\"u}ller-Schwefe and Rainer Wigand and Ute Essner},
  title     = {Efficacy, tolerability, and safety of an oral enzyme combination vs diclofenac in osteoarthritis of the knee: results of an individual patient-level pooled reanalysis of data from six randomized controlled trials},
  journal   = {Journal of pain research},
  volume    = {9},
  pages     = {941 -- 961},
  doi       = {10.2147/JPR.S108563},
  year      = {2016},
}