In 1999, a scientist at the Lawrence Berkeley Laboratory in the US faked crucial evidence linking power lines to cancer in the Annals of the New York Academy of Sciences and F E B S Letters.

In 2002, claims by researchers at Bell Labs in the US on creation of molecular-scale transistors were proved wrong. Journals Science Nature published the papers.

In 2005,British Medical Journal and The Lancet expressed concerns over the findings by the Indian cardiologist R B Singh in a study on the role of diet in checking heart diseases.

In 2005, findings of the South Korean scientist Hwang Woo Suk and team who