"Publication bias and low methodological quality inhibit definite conclusions yet the evidence is positive." The selection bias inherent to meta-analyses also

"Publication bias and low methodological quality inhibit definite conclusions yet the evidence is positive." The selection bias inherent to meta-analyses also leads to difficulty using any of them to "prove" the existence of homeopathy. The principles are not science. If you cherry pick studies, you might eventually find some with a positive response.