Published LMS parameters to create Noonan Syndrome growth curves have severe issues, with the male BMI curve at the 97th percentile approaching infinity (and then imaginary numbers) at around 17.5 years of age.
Boys with Noonan Syndrome at the 97%ile for BMI will collapse into a singularity at ~17.5 years age. It's very sad.
In other news, learned in 2 days how to use #Rlang #quarto-preprint with #typst to submit a report on corrected LMS growth curve parameters to #MedRxiv doi:10.1101/2025.07.29.25332354