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#14Days on the Wagon Nearly 23 million Americans need treatment for a drug or alcohol problem, the DRUG ABUSE and Mental Health Services Administration reports. If you are not one of these people, you know someone who is Get more information . In response to these staggering figures, and what the Centers for Disease Control and Prevention has labeled an epidemic in the U.S., CBS Information is introducing a string, #14Days on the Wagon, to improve awareness about addiction and generate support for those struggling with this life-threatening disease.

The mechanisms underlying false positive results of cfDNA-based non-invasive prenatal screening remain incompletely elucidated.7 Explanatory hypotheses include maternal mosaicism,8,9 undetected tumors,10 the vanishing twin syndrome,11 and confined placental mosaicism,12,13 in addition to technical errors. Although case reports have documented examples of underlying factors behind false positive and various other aberrant results, only a small proportion have already been comprehensively explained.8 Methods of cfDNA-based non-invasive prenatal screening include massively multiplex polymerase-chain-reaction assay,14 shotgun sequencing,15,16 and targeted sequencing.17 The Illumina Verifi and Sequenom MaterniT21 PLUS tests derive from counting statistics that naturally arise from shotgun sequencing of total cfDNA in maternal plasma.