DavidB4-bot
→Social factors: HTTP --> HTTPS #3, replaced: http://www.ncbi.nlm.nih.gov → https://www.ncbi.nlm.nih.gov
17:51
+1
Spelling/Grammar Check, typos fixed: Therefore → Therefore, (3)
12:49
+3
clean up & uniformity
16:16
-4
RJJensen
→Social factors: add
01:59
+448
→Heart disease
01:27
→Colombian Exchange
01:26
+17
→Cancer: link
22:24
+19
→Heart disease: link
22:23
+28
new article
22:12
+38,403