Authors: P Little; L Roberts; H Blowers; J Garwood; T Cantrell; J Langridge; J Chapman Journal: Spine (Phila Pa 1976) Date: 2001-10-01 Impact factor: 3.468
Authors: Jeffrey G Jarvik; William Hollingworth; Brook Martin; Scott S Emerson; Darryl T Gray; Steven Overman; David Robinson; Thomas Staiger; Frank Wessbecher; Sean D Sullivan; William Kreuter; Richard A Deyo Journal: JAMA Date: 2003-06-04 Impact factor: 56.272