NIH laboratory admits to fabricated embryo research, retracts paper.

Focuses on a retraction published in the May 29, 1992 issue of `Cell' which stated that data supporting a 1991 paper on mouse embryo development, written by four researchers from the National Institutes of Health (NIH) had been fabricated. Fabrication allegedly was the work of one author without the knowledge of the others; `Oct-3 is a maternal factor required for the first mouse embryonic division'; Problems of replicating the paper's results; Mitchell Rosner; More.