21.   An unshaven young man in a white coat slouched into the cubicle and handed Zen three dark rectangular sheets of plastic.

22.   Three wore the white coats of the back-room boffin, the fourth was diminutive, little more than a boy.

23.   He wore a white coat, and glasses which seemed disproportionately large.

24.   A houseman came in first in a pure white coat,

25.   She rose to her feet, reaching for the white coat that hung on a peg behind the door.

26.   She decided purposely against the white coat.

27.   Lindsey slipped the stethoscope into the pocket of her white coat as they headed back to reception.

28.   She shrugged herself into her white coat.

29.   Jim appeared, dressed in shorts and an outrageous T-shirt that had Lindsey in fits of laughter as she shed her white coat.

30.   She made it in four, her hair still wet from the shower, wearing jeans and a T-shirt beneath the white coat she had hastily thrown on.