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Growth parameters. (a) Mean height, (b) Mean weight for height, (c) Mean weight for height deletion versus nondeletion, (d) Mean weight for height UPD‐IC versus UBE3A‐mutation, (e) Mean head circumference at most recent measurement. Dashed line indicates 0 SDS in (a)–(d) and indicates −2 SDS as demarcation of microcephaly in (e). IC, imprinting center defect; UPD, uniparental disomy
