Medical Textbooks
All medical textbook chapters need an abstract. Capture abstracts provided by OUP in the chapter abstract element.
If the medical textbook is broken into parts capture the parts using the part element.
Represent numbered headings using the part or chapter elements. The chapter element can appear at different levels in the hierarchy in different sections of the book. Use chapter elements to represent the content within the lowest possible numbered heading and represent parent numbered headings using part elements.