Snack crackers yield opiate-positive urine.
McCutcheon
J R
JR
Wood
P G
PG
D005189:False Positive Reactions; D005502:Food; D006801:Humans; D009294:Narcotics / Q000652:urine*; D010207:Papaver; D010946:Plants, Medicinal; D015813:Substance Abuse Detection / Q000706:statistics & numerical data*
D009294:Narcotics