Given the chronic nature of the diseases reviewed it is likely that many persons would fall into the ‘RACGP active’ patient classification; however, those who visit less frequently, or ‘shop’ between more than one GP practice for their care, are likely to have been excluded. As previously...
59、e evaluating the efcacy of two different procedures, A and B, and one study shows that A is better than B and the other shows that B is better than A, we cannot combine the two studies together because the result may be misleading.It is not possible to further assess the differenc...