Drs Verma and Masoom had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Drs Verma and Masoom are co-first authors.

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We present the case of a patient with depression who attempted suicide through self-dissection and severing of her permanent pacemaker leads. The case highlights the importance of screening for psychiatric disorders prior to device implantation and continued surveillance for self-harm behaviors. ( Level of Difficulty: Beginner. )

Abstract-Sequencing technologies used to generate long strands of DNA are susceptible to laboratory errors that may result in several DNA nucleotides being deleted from the genome. Detecting such deletions in the protein coding regions is of utmost importance. Missing even a single nucleotide may lead to frame shifts with all the following codons (and consequently the encoded amino acids) being identified incorrectly. In addition to the deletion of nucleotides during sequencing, frame shifts can occur because of a variety of other reasons including mutations. In this paper, we present a fast computational technique to identify frame shifts in protein coding regions in DNA sequences. Our technique is based on Fourier spectral characteristics of coding regions in DNA sequences. We provide two applications of our technique -detecting deletions in DNA sequences in coding regions and also detecting frame shifts in viral DNA.