RT Journal Article SR Electronic T1 Experience with agar-filled plastic spoons for the transport of specimens of urine JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 741 OP 746 VO 99 IS 15 A1 J. M. Dixon A1 M. A. Clarke YR 1968 UL http://www.cmaj.ca/content/99/15/741.abstract