Comments From the Submitter: These are all the chips from a large public dataset: Amy Holleman, Meyling H. Cheok, Monique L. den Boer, Wenjian Yang, Anjo J.P. Veerman, Karin M. Kazemier, Deqing Pei, Cheng Cheng, Ching-Hon Pui, Mary V. Relling, Gritta E. Janka-Schaub, Rob Pieters, and William E. Evans Gene-expression patterns in drug resistant acute lymphoblastic leukemia cells and response to treatment. New England Journal of Medicine 2004; 351 There are two artifacts that appear on a number of chips in this data set. One I refer to as ripples on a pond and the second as fleets of flying saucers. |