1 Subjects: “...national nature reserve...”

2 Subjects: “...National Health and Examination Survey (NHANES)...”

3 Subjects: “...Chinese national scenic areas...”

4 Subjects: “...National Land Cover Database (NLCD)...”

5 Subjects: “...National Health Services...”

6 Subjects: “...Manu National Park...”

7 Subjects: “...national ambient air quality standards...”

8 Subjects: “...cross-national case study...”

9 Subjects: “...National Fitness Programs...”

10 Subjects: “...national parks...”

11 Subjects: “...national health insurance...”

12 “... Division of the National Library of Medicine (NIH), funded by the Office of Digital Humanities...”

13 “... in these environments. In the absence of national references to be used for a comparison, it is possible to use those...”

14 “... Development Goals (SDGs) set by the United Nations (UN). There are lots of challenges to developing modern...”

15 “... in socio-economic dimension, urbanization etc.), in the urban space particularly in developing nations...”