Also, communication through "word of mouth" has a major role in promoting health services. As a result of
cultural values and level of education, individuals tend to give more reliable information from private sources
because they provide information on experiences regarding the service. Using these sources is difficult to control,
because their use raises many questions about how information will be perceived by the public, which can affect
consumer perception of service and efficiency of other promotion techniques used (Radulescu, 2008).