21.   , shift operator, taking a sample from one of the steep tanks.

22.   This is equally true whether we take our sample of carbon dioxide from the North Pole, the South Pole, the Sahara Desert or from the Moon.

23.   Wilson et al took samples of diseased intestine and subjected them to a non-specific PCR amplifying the DNA of any bacteria present.

24.   One blood sample was taken before endoscopy and the patients then had a colonoscopy to the caecum.

25.   Blood samples were taken at the end of each infusion period for gastrin assay.

26.   Six patients, all with malignant strictures, had bile samples taken at both endoscopic retrograde cholangiopancreatography and percutaneous transhepatic cholangiography.

27.   The French government had earlier offered to allow Greenpeace representatives to visit Muroroa, on condition that they refrained from taking samples.

28.   Since no water and fish samples have been taken after the kills, the claim cannot yet be substantiated.

29.   Soon all the blood samples were taken, and labelled.

30.   But minutes after this sample is taken electronically, the logger is plugged into a computer which immediately displays graphic images of the chemical cocktail underground.