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BMJ.317.7167.1233
BMJ.317.7167.1233
http://dx.doi.org/10.1136/BMJ.317.7167.1233
"A calculated risk": the Salk polio vaccine field trials of 1954
P356
Q33792400-C6DF830D-E3D2-4A2F-91D2-1F864E3B75D0
P356
BMJ.317.7167.1233
http://dx.doi.org/10.1136/BMJ.317.7167.1233