Gender Prediction via Urine tests

[Margerle]

Just posted this in another thread. Thought the scientific minds would be interested in this:

https://www.wipo.int/pctdb/en/wo.jsp?IA=WO1990%2F03573&WO=1990%2F03573&DISPLAY=DESC

Looks like Intellegender puts a coloring agent in with their reagent chemicals.

Also determined, was the test was best taken 20-24 weeks into the pregnancy or later for best results.