21.   Especially among student radicals, there was a belief that the struggles of all people could be somehow rationally linked in a single cause and movement.

22.   For that is the single greatest cause of homicide in America.

23.   In fact, according to the ICCIDD, iodine deficiency is the single biggest cause of preventable mental retardation and brain damage in the world.

24.   Is there really no way to prevent the single most preventable cause of death in the country?

25.   It is unlikely that the increasing numbers of Missouri nursing homes with violations can be attributed to a single cause, Lenz said.

26.   It has no single cause.

27.   Motor vehicle accidents are the single most frequent cause of death among children and young adults.

28.   My opinion is that it is the single greatest medical cause of illness, health care costs, and death today.

29.   No single cause can explain such a mystery.

30.   Screen glare is by some accounts the single biggest cause of eyestrain.