Published online by Cambridge University Press: 29 January 2018
Pollin et al. (12) found that in a series of 11 monozygotic twins (MZ) discordant for schizophrenia all of the index twins weighed less at birth, 8 of the index twins were second- born and 7 out of the 11 mothers had varying thyroid pathology ‘of clinical significance’. The following report is probably the first giving details of investigations into a pair of MZ twins who were given thyroid extract during the neonatal period because of failure to make normal progress.
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