Perhaps you should try some spelling variations:
"clinicas mexicana en medicina interna ;" » "clinicas mexicanas en medicina interna ;", "cronica mexicana en medicina interna ;", "climatica mexicana en medicina interna ;", "clinicas mexicana de medicina interna ;"
"clinicas mexicano la medicina interna ;" » "clinicas mexicanas la medicina interna ;", "clinical medicine la medicina interna ;", "clinica medica la medicina interna ;", "clinicas mexicano de medicina interna ;", "clinicas mexico la medicina interna ;", "clinicas mexicano en medicina interna ;"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("clinicas mexicana en medicina interna ;") OR ("clinicas mexicano la medicina interna ;"))~.
• Removing quotes may allow a broader search: (( clinicas mexicana en medicina interna ; ) or ( clinicas mexicano la medicina interna ; ))~.
• Adding a wildcard symbol may retrieve word variants: (("clinicas mexicana en medicina interna ;") or ("clinicas mexicano la medicina interna ;"))*.