It may be even worse (e.g. Kendell and Jablensky 2003 and references therein): the DSM classification may obstruct scientific progress, because it forces to compare heterogeneous cohorts ('apples and pears') for common characteristics ('genes, colour', etc).
However, if the polish gets into the wrong area, it may obstruct your connection; the fool-proof solution is to tighten the jack when you need it tightened again.
If a baby fails to rotate, another part of its body, such as its shoulders, hands, or feet, may obstruct the birth canal, which is painful and dangerous for the mother and infant.
Wearing a pumpkin may obstruct your player's vision, but it will prevent Endermen from turning hostile.
Tumours in the lower part of the stomach produce obstructive symptoms, and tumours high in the stomach may obstruct the esophageal entry into the stomach, producing difficulty in swallowing.
Instead, it appears that interruption of normal clock rhythm may obstruct cancer growth.
If too tight, the valves may obstruct the urethra and damage the kidneys.
In the prostate they may obstruct the bladder and invade the adjacent pelvic tissue.
Involvement of the trachea may obstruct breathing or lead to pneumonia.
Government security forces are preparing a large offensive against the Taliban in Warduj district, close to the quake's epicentre, even though the fighting may obstruct aid efforts.
