Researcher Profile Statistics: Ferris, David C

(Statistics checked on Nov 24, 2022)
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Geo Map
Region #
AS - Asia, other 20
NA - North America 9
Total 29
Country #
CN - China 10
SG - Singapore 10
US - United States of America 9
Total 29
City #
Shenzhen 7
Des Moines 1
Wuhan 1
Zhengzhou 1
Unknown 19
Total 29


Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Tot
2018 00 1010 1000 11 5
2019 01 0110 0010 00 4
2020 00 0190 0000 00 10
2022 01 0100 0003 50 10
Ever 29