Hello!
Back after a very long time!!!
For the forensic genealogy pointing to Western Euro countries
«There is no doubt she originated from one of these countries (Netherlands, Belgium, Germany, Italy or Canada).»
I have something to bring up about Germany.
In 1983, Germany was divided in two countries, DDR (Eastern Germany) and Western Germany.
If she was from DDR, then, I suspect that the lady was from the apparatchiks and not an ordinary citizen.
So, having given birth and crossing the Berlin wall to get an UID is a possibility.
Another possibility for the UID is about clandestine testings without patients' consent because DDR finances were such in dire state they needed cash from Western companies.
Hundreds of clinical tests were conducted on citizens of East Germany during the Cold War, it has been revealed. The trials by Western companies, the report concluded, did not contravene ethical practices at the time.
amp.dw.com
And for German missing people before 1989-1990, you can find about DDR missing persons only on specialised FB pages and groups. Nothing from MSM, which is a real problem.
In such case of DDR, her child may had been given in forced adoption.
Article about forced adoptions in DDR:
Forced Adoptions in East Germany Continue to Cause Pain
German families torn apart by forced adoptions during the cold war are still looking for answers – and their lost relatives
amp.theguardian.com
In such cases, the hospital told the biological family that their child was died and the child is registered under falsified registration before being forcibly adopted.
If she was from DDR, it can explain why she was not searching for her child.
For the Meditterranean type, she could had been a madgerman from Algeria.
Most skilled workers in DDR were from Mozambique, but Algeria was communist in those days and sent workers in DDR.
"Contract worker" in the GDR | DOMiD | Documentation Centre and Museum of Migration in Germany (Migration museum in Germany)
For the Russian dentistery in 1983, that might be explained by dentists being taught the Soviet way.
I can't say for certain that she was from DDR, but it is a possibility of being from DDR.
The Multiload IUD was available in Western Germany.
So, either she had it inserted there or got it forcibly when at hospital in DDR for another reason. The other reason was the tracheostomy.
I know from an archive video report on French TV archives that they were doing dialysis and transplants with cyclosporin in Eastern Berlin.
Tracheotomy was available in DDR. With the German keywords "tracheotomie ddr", I found elements indicating the availability of trach as soon as 1954.
But about the immigration in DDR, I found very few elements in English.