ANGPT1 and X-linked dominant hypophosphatemic rickets: Concentrations of Ang-1-7 were below the LLOQ in most patients in the NT group (detected in only 7 and 16 patients in the first and third trimesters, respectively), and in the HYP group (detected in only 7 and 9 patients in the first and third trimesters, respectively), so the median values and IQR for this analyte were less than the LLOQ and are not listed in Table 2.