In a tree, Node which does not have any child is called Leaf Node. Leaf nodes are also known as External Nodes or Terminal Nodes. In other words, all the nodes except leaf nodes are parent nodes. Trees are often called Inverted Tree because they are normally drawn with root at the top...
Vast volumes of data, coded through hierarchical terminologies (e.g., International Classification of Diseases, Tenth Revision–Clinical Modification [ICD10-CM], Medical Subject Headings [MeSH]), are generated routinely in electronic health record systems and medical literature databases. Although graphic...