Sign only if certain

Stephen Senn (Letters, March 3) overlooked a significant point regarding the publicised drug study collaboration of Procter & Gamble with Sheffield University.

Authors and all scientists take the responsibility for the work that is published under their names.J If P&G was unable to dis-pel the doubts of Sheffield researchers about the conclusions of its data analysis, it should not have published the researchers' names as authors of findings theycould not possibly vouch for.

Majzoub B. Ali Council for Academic Freedom and Academic Standards