TY - JOUR T1 - Ethical Considerations of Biotechnologies Used for Performance Enhancement AU - Lea, Randall D. Y1 - 2009/08/01 N1 - 10.2106/JBJS.I.00023 JO - The Journal of Bone & Joint Surgery SP - 2048 EP - 2054 VL - 91 IS - 8 N2 - SN - 0021-9355 M3 - doi: 10.2106/JBJS.I.00023 UR - http://dx.doi.org/10.2106/JBJS.I.00023 ER -