I`m absolutly agree with Dr. Djulbegovic. In fact, there are some areas with
no "evidence" in terms of RCT, but with good observational studies. The best
evidence must be a well designed study, not only the RCT`s. Only the
critical appraissal of RCT AND observational studies can answer correctly a
clinical cuestion
Sergio Uribe, DDS
Clinica de Odontopediatria y Traumatologia Infantil
Universidad de Valparaiso
Chile
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