TY  - GEN
AU  - James,W V
AU  - Orr,J F
TI  - The Pringle and Kirk four-bar crossed linkage and the "safety-knee"
SN  - 0309-3646
PY  - 1986///0725
KW  - Arm
KW  - Artificial Limbs
KW  - history
KW  - History, 20th Century
KW  - Knee Prosthesis
KW  - Northern Ireland
KW  - Prosthesis Design
N1  - Publication Type: Biography; Historical Article; Journal Article; Portrait
UR  - https://doi.org/10.3109/03093648609103075
ER  -