In 1997, the whooping cough vaccine, which sent some babies into anaphylactic shock, was replaced by a safer version.

Catalona is also responsible for the safer version of the radical prostatectomy that he performed on Torre.

These were sometimes smaller, safer versions of the park's main attractions.

Strong designed a safer version which included eight guide wires in a circle surrounding the parachute.

"Basically, I do a safer version of what I used to do," he said.

Meanwhile, labs worldwide have also been working to invent safer versions of calcitriol that eliminate its toxic effects.

For the most part, the homeless mentally ill need clean, safe versions of the city's old single-room-occupancy hotels, staffed with resident social workers.

Some languages like Perl provide both safe and unsafe versions.

(Learn how to make your own safe versions here.)

He wanted more than just the sanitized, politically safe version they would give to him or to anyone he could send to talk to them.