An unexpected case of coumarin poisoning with coumatetralyl.

A healthy man in his 40s presented with a 1-month history of haemoptysis and was unexpectedly found to have an elevated international normalised ratio (INR). He denied any known exposures to anticoagulants. Testing for the possible aetiologies of a high INR revealed coumarin poisoning with coumatetralyl as the cause.

Smoking, drinking and colorectal cancer in Hong Kong Chinese: a case-control study.

Expert opinions differ on the causal role of cigarettes and alcohol in colorectal cancer. This study investigates such associations in Hong Kong Chinese. A hospital-based case-control study was conducted from April 1998 to March 2000.