Description Usage Arguments Value References
Manual least squares fit to the Merz et al. (2016) data using a 10th order polynomial
1 | logPAPPA(crlbe)
|
crlbe |
crown rump length (in mm) at the time of the serum sampling |
The expected value of logPAPPA (from a 10th order polynomial fitted to the data of Merz et al.)
Merz, E., C. Thode, B. Eiben, and S. Wellek. 2016. “Prenatal Risk Calculation (PRC) 3.0: An Extended Doe-Based First-Trimester Screening Algorithm Allowing for Early Blood Sampling.” Ultrasound International Open 2: E19–E26. doi:10.1055/s-0035-1569403.
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