The few randomized, double-blind tests that receive attention in medical publications are often questioned on methodological grounds or interpretation.

Corfe and Butler criticized this work on methodological grounds.

And it has been challenged on its own methodological grounds, most recently in today's Nature article.

This book has been heavily criticized on theoretical and methodological grounds, but some of its findings have been confirmed by further empirical research.

As scholars have long pointed out, however, the poll itself is open to serious question on methodological grounds.

It was criticized on a variety of methodological grounds.

Some anthropologists criticized Freeman on methodological and empirical grounds.

However, this conclusion was later criticised on methodological grounds.

This practice has been criticized on general methodological grounds.

These national estimates have been criticized on theoretical and methodological grounds.