Final answer:
Liquor must not be delivered to a patient in a medical institution or a patient in an institution for the treatment of alcohol addiction.
Step-by-step explanation:
The statement is true. According to the information provided, the transportation or importation of intoxicating liquors into a medical institution or an institution for the treatment of alcohol addiction is prohibited. This is in line with the attempt to control and prevent alcohol use in these specific environments. The prohibition of alcohol in medical institutions and alcohol addiction treatment facilities aims to create a supportive and conducive environment for patients' recovery.