Researchers know that quitting smoking can prevent the occurrence and decrease the progression of emphysema.

In some types of MD both the father and mother must have a faulty gene to pass it on, which is called recessive inheritance. US research shows people undergoing fertility treatment would prefer to have multiple births than have no children. This involves the parent inflicting damage on their child. What are the possible complications? BBC News website explains some of the most common complaints.
Q: Should health workers take precautions?