J Gen Intern Med. 1999 Jul;14(7):449-50. doi: 10.1046/j.1525-1497.1999.05079.x.
Journal of general internal medicine
P Thomas
PMID: 10417606 PMCID: PMC1496608 DOI: 10.1046/j.1525-1497.1999.05079.x
[No abstract available.]