bibliographic entry 1331200 [be/1331200]
https://w3id.org/oc/corpus/be/1331200

is a

• bibliographic reference

content

• Von Korff, M. Studying the natural history of back pain, Spine, 1994, 19, 18 Suppl, 2041S, 2046S, PMID: 7801181

references

• https://w3id.org/oc/corpus/br/1452407