51.   How difficult was it, Deputy District Attorney Hank Goldberg asked Ms. Mazzola, to collect blood samples?

52.   If the funding continues, later craft are to collect rocky samples from promising sites and return them to Earth.

53.   In effect, they will collect air samples continuously for a month or more, depending on wind direction.

54.   In early June, he said, they spent three nights laying plastic sheets under trees full of flying foxes, collecting urine samples.

55.   In their research, CDC scientists have asked people in Zaire to drink coffee and run around to work up a sweat so they could collect samples.

56.   In the study, samples were collected every three days from faucets in kitchens, bathrooms and offices.

57.   Instead, she gave her a cast-off hairbrush, from which a sample could be collected.

58.   Investigators no longer need to spend two years collecting field samples.

59.   Jones and his colleagues in Leicester will begin collecting tumor samples in January.

60.   Kieth Gregg, manager of a shrimp farm, collected samples of infected shrimp last week.