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GRASP - Genetic Research Analysing Short Patients

Sample requirements

As well as a sample from the patient, we would like samples from both parents, if possible. This helps our genetic analysis - so that we can see if any genetic changes found in the patient is present in either or both parents. We also welcome samples from any other family members such as siblings, particularly if they also have short stature or other features which may be associated with a short stature disorder.

We require samples of either:

  • DNA (a concentration of at least 100ng/µl and at least 50µg total volume)


  • Blood (EDTA sample, 5-10 ml)

Please send the samples at room temperature to our laboratory address given here with the completed consent forms



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