Marie has left written instructions directing doctors and family members to avoid or stop using life-sustaining procedures in the event of a terminal condition. Such an instrument is called the

What is now known as posttraumatic stress disorder (PTSD) was called ____ in World War I

a. shell shock c. battle fatigue b. soldier's heart d. postwar syndrome

Infant vocalizations, which begin at around age six to eight weeks and are primarily vowel-like sounds, are called babbling

Indicate whether the statement is true or false