High-risk fragile x screening in Guatemala: use of a new blood spot polymerase chain reaction technique.

Abstract excerpt

BACKGROUND: Because fragile X syndrome (FXS) is prevalent, it has become the subject of newborn and high-risk screening efforts. International screening, however, can be financially and logistically prohibitive, particularly in countries where resources may be scarce. Recently, we have developed a screening test on blood spot that can detect expanded alleles from the normal through the full mutation range in both...

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