Exemplo de filtro de pesquisa realizada na base Medline via PUBMED

#8	Search (#4) AND (#6) Limits: only items with links to full text, Humans, Randomized Controlled Trial, Adolescent: 13-18 years	15:22:25	11
#7	Search (#4) AND (#6)	15:10:39	783
#6	Search (Obesity ) AND ((relative[Title/Abstract] AND risk*[Title/Abstract]) OR (relative risk[Text Word]) OR risks[Text Word] OR cohort studies[MeSH:noexp] OR (cohort[Title/Abstract] AND stud*[Title/Abstract]))	15:06:25	9153
#5	Search (#1) AND (#4)	15:01:57	19896
#4	Search "Obesity/metabolism"[Mesh]	14:55:30	19896
#1	Search Obesity	14:39:14	119382