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Fig 1.

Indications for prenatal invasive diagnostic tests for the period 1981–2012.

NT–nuchal translucency measurment, 2/3/4 HT–combined, triple or quadriple hormonal test, US–ultrasound abnormalities.

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Fig 1 Expand

Fig 2.

Numbers of total, prenatally diagnosed, newborn, and expected liveborn cases with T21 in Slovenia, 1981–2012.

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Fig 2 Expand

Fig 3.

Mean maternal age and invasive diagnostic tests for the period between1981-2012.

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Fig 3 Expand