Perhaps you should try some spelling variations:
"cientificas mexicana de anestesiologia ;" » "cientifica mexicana de anestesiologia ;", "cientificas mexicano de anestesiologia ;", "cientificos mexicanos de anestesiologia ;"
"clinical medicina y anestesiologia ;" » "clinical medicine y anestesiologia ;", "clinica medica y anestesiologia ;", "clinicas mexicanas y anestesiologia ;", "clinical medicina en anestesiologia ;", "clinical medicina la anestesiologia ;", "clinical medicina anestesiologia y ;", "clinical medicina de anestesiologia ;"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("cientificas mexicana de anestesiologia ;") or ("clinical medicina y anestesiologia ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("cientificas mexicana de anestesiologia ;") OR ("clinical medicina y anestesiologia ;")).
• Removing quotes may allow a broader search: (( cientificas mexicana de anestesiologia ; ) or ( clinical medicina y anestesiologia ; )).
• Adding a wildcard symbol may retrieve word variants: (("cientificas mexicana de anestesiologia ;") or ("clinical medicina y anestesiologia ;"))*.