21.   When administred for short periods its toxicity seems low but may cause nausea, abdominal cramps, and abnormal liver function tests.

22.   Liver function tests were normal in four.

23.   We have, therefore, chosen a control group, which comprised patients with normal liver function tests and in whom the gall bladder was removed during liver resection.

24.   Staging systematically included a bone marrow biopsy, chest and abdominal computed tomography, oropharyngolarynx examination, and liver function tests.

25.   The third group only received periodic examinations and lung function tests like those received by all participants in the study.

26.   The study resumed in January, with new informed consent forms and additional physical screening, including lung function tests, for the participants.

27.   There was also a small but significant improvement on the lung function tests, Eisner and his colleagues reported.

28.   They appeared healthy but their lung function tests showed early signs of chronic obstructive pulmonary disease.

29.   They had blood-pressure readings taken nine years apart and were given brief cognitive function tests every three years to check for any mental decline.

30.   Brain and organ function tests were being run to determine whether oxygen deprivation had affected him.