hi jesspt
thanks for the reply.i agree with your comments.

everyone should be research oriented.i would like to mention that high quality studies will always suport clinical practise.if centeredhealth couldn't come to a conclusion regarding the effectiveness of ultrasound ,doesn't mean we should turn back from research articles.there are many aspects-biopsychosocial- which will have an influence on the patient's condition.
critically analysing the articles are important."chew well before you swallow"
cheers