drawing of tobacco plant Leaf And Flowers A by Mary Evans Picture Library Tobacco Plant Ink Black White
Description
However, drawing a clear division between subtypes is often difficult

This series is sometimes called a barium swallow for one type of contrast liquid that is used and when the examination is limited to the esophagus

2) Supporting self-efficacy, e.g

What our tester says: After months of constant use in our New York City apartment, this has been a reliable way for us to eliminate smoke and other visible particles

The Western Journal of Medicine 158 , 635 (1993)
