Does the below statement sound correct for Ramzi Theory?

“Basically if the placenta is on the left = girl and right = boy, but this depends on whether you had an internal or abdominal scan. If you had an abdominal scan then the photo is mirror image so right = left and vice versa, whereas internal scan right =right and left=left! Hope that makes sense.”

https://www.whattoexpect.com/forums/june-2015-babies/topic/ramzi-theory-explained-29.html