According to chapter 2. Between international and global health of textbook global health by Anne-Emanuelle Birn; Yogan Pillay; Timothy H. Holtz answered

1. Note any two words or phrases that are unfamiliar to you or that are used in a special sense.

2. Note two specific concepts that stand out to you as noteworthy in some way. This can be something totally new to you or something that you had never thought about in exactly this way (e.g. seeing it through a new lens). List the page number where you found the concept.