The two lab chiefs were also interested in receiving due credit, and discussions ensued between them that were stressful for him, Dr. Tsien recalls.

The lab chief's office reflects the changes in slot machine fraud.

Dr. Ahn also served a lab chief in a research group during his career at the U.S. Food and Drug Administration (FDA).

Luckily, I was working at Modern Photography at the time, so I could call on the magazine's lab chief.

Later, he moved to the NIMH, where he was a lab chief for 22 years.

In some labs, they even resorted to little tricks to impress the lab chief.

The lab chief reassembled the gun himself, just to show his technicians that he still knew how.

Anyway, let me talk to my lab chief.

He signaled to the acting lab chief, Tokimoto, and walked into what the techs called "the vault."

Not nearly as nervous as some of the lab chiefs.