1.   Operators received lethal doses of radiation while needlessly reconnecting the water supply to the devastated reactor.

2.   She took a lethal dose of painkillers.

3.   Some workers received lethal doses because the rest of the site was not evacuated.

4.   The prison staff member will then begin to administer lethal doses of three chemicals.

5.   ...a lethal dose of sleeping pills.

6.   What effect on pain might, say, three-quarters of the lethal dose have had?

7.   The river still carries a lethal dose of poisons.

8.   An autopsy revealed he had a lethal dose of heroin in his system.