Why Did the Use of Intermittent Positive-Pressure Breathing Declined in the 1980s

question 22

Multiple Choice

Why did the use of intermittent positive-pressure breathing declined in the 1980s?

• A)due to a lack of scientific evidence to support its use for delivering aerosolized medication
• B)due to its cost of implementation
• C)due to its complexity
• D)replaced by newer technology

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Definitions:

Birdsong Structures

Neural circuits and regions in the brains of birds that are responsible for the learning and production of birdsong.

Hormones

Chemical messengers produced by the endocrine glands that regulate various body functions, including growth, metabolism, and reproductive processes.

Genetics

The study of genes, heredity, and genetic variation in living organisms.

Subsong

A quiet and variable type of vocalization made by young birds as they learn to sing.