
Keywords: 1TC; 1st trimester control group; 1T non-PE; 1st trimester of non-preeclamptic women; 1T-PE; 1st trimester of preeclamptic women; 2TC; 2nd trimester control group; 3TC; 3rd trimester control group; Ca; calcium; E-PE; early-onset preeclampsia; GH; gestatio