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Say-Barber-Miller syndrome
Say-Barber-Miller syndrome is characterised by the association of unusual facial features, microcephaly, developmental delay, and severe postnatal growth retardation. [from ORDO]
Transient hypogammaglobulinemia of infancy
At birth, newborns are endowed with maternal antibodies. IgG production normally begins at the age of two months. A delay in recovery from this physiological hypogammaglobulinemia between the 3rd and the 6th month of life, and of recovery period between 18 and 36 months defines transient newborn hypogammaglobulinemia. [from HPO]
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