On Doctoring MEDLINE searches, with reference librarian comments

The question was

"My research question was: Learn about any of the
side effects of
herbal medicines such as gingko biloba and echinecia."

-----------------------------------------------------------------------------
1 :  exp *Plant extracts/ae,po,to [Adverse Effects, Poisoning,         {606}
Toxicity]
2 :  "GINKGO BILOBA".mp.         {239}
3 :  1 and 2         {4}
4 :  "ECHINACEA".mp.         {39}
5 :  1 and 4         {0}
6 :  "ADVERSE EFFECTS".mp.         {12493}
7 :  4 and 6         {2}
8 :  3 or 7          {6}

Reference Librarian comments

You were using MEDLINE very nicely. And you probably discovered that
MEDLINE is not (yet) a great source for references on herbs, though
there are more and more, as interest increases. Sometime, try the
"Alt-Health Watch" resource, at:

http://www.softlineweb.com/softlineweb/althealth.htm