1 Subjects: “...food surveys...”

2 Subjects: “...student survey...”

3 Subjects: “...cross-sectional survey...”

4 Subjects: “...radon survey...”

5 Subjects: “...cross-sectional survey...”

6 Subjects: “...cross-sectional survey...”

7 Subjects: “...cross-sectional survey...”

8 Subjects: “...online survey...”

9 Subjects: “...vegetation survey...”

10 Subjects: “...survey...”

11 Subjects: “...health impact survey...”

12 Subjects: “...drone survey...”

13 Subjects: “...drone survey...”

14 “... accommodates surveys that elaborate on the differences between the implementation of new organizational forms...”

15 “... activities involving human subjects, such as epidemiologic studies and surveys. Those research activities...”

16 “... scientific survey to comprehend and learn how things still can be changed. He found that clear solutions...”