11.   But in other cases, doctors suspect a rather different cause of death.

12.   Chickenpox, the doctors suspect.

13.   Doctors suspect that ACE inhibitors may be useful, but studies have not yet been completed.

14.   Doctors suspect abuse.

15.   Doctors suspect the disease moved so swiftly because too few preschool children had been immunized.

16.   Doctors suspect it is due to the release of catecholamines, adrenaline-like neurotransmitters that gear your body up for the day by stimulating the nervous system.

17.   Doctors suspect that air bubbles produced by the machine may block blood flow through minute vessels inside the skull, killing brain cells.

18.   Doctors suspect that lasers tighten the skin by drawing together collagen with less potential scarring than other treatments such as chemical peels or dermabrasion.

19.   Doctors suspected a heart attack.

20.   Doctors suspected abuse, and an autopsy confirmed that Sophia had suffered a skull fracture, police said.