BPG is committed to discovery and dissemination of knowledge
Open-Access Journal
Review
Christine C Johnson, Daniel J Johnson, Joseph N Liu, Joshua S Dines, David M Dines, Lawrence V Gulotta, Grant H Garcia 
World J Orthop 7(9):519-526. Published online Sep 18, 2016. doi: 10.5312/wjo.v7.i9.519
Minireviews
Retrospective Cohort Study
Observational Study
Prospective Study
Systematic Reviews
Berardo Di Matteo, Markus Loibl, Luca Andriolo, Giuseppe Filardo, Johannes Zellner, Matthias Koch, Peter Angele 
World J Orthop 7(9):592-603. Published online Sep 18, 2016. doi: 10.5312/wjo.v7.i9.592
Case Report