RT Journal Article SR Electronic T1 Matters of exchange: commerce, medicine and science in the Dutch golden age JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 464 OP 464 DO 10.7861/clinmedicine.8-4-464 VO 8 IS 4 A1 Christopher C Booth YR 2008 UL http://www.rcpjournals.org/content/8/4/464.abstract AB