Sorry about the number of posts.
It took me some time to gather my thoughts and to realize how thoroughly you dismissed this idea that abortions on women with ectopic pregnancies can lead to fatalities. I think it's understandable that I was taken aback. I have no medical background, and you say you have one, so I doubted what my own eyes told me the article actually said.
I can imagine that multiple pregnancies, such as you describe, in which one twin settles in the fallopian tube and the other settles in the uterus, are very rare.
It's important to make sure that everyone, especially the occasional slap-dash abortionist, is aware of the very real risks involved for women with ectopic pregnancies who seek abortions.
You wrote: One thing is for sure: to blame the undiagnosed twin ectopic on the abortion itself, is ridiculous.
In some twin pregnancies, one embryo may implant in the uterus and the other may implant at an ectopic location. This rare event is called a heterotopic pregnancy and occurs more commonly in women undergoing some infertility treatments.[snip]The incidence of ectopic pregnancy is higher in the infertility population, mostly due to the increased incidence of tubal abnormalities in these women. Fertility drugs also appear to alter tubal function by their effects on hormones and may be associated with the increased risk in this population.[snip]
IVF, a fertility treatment in which a woman's egg is fertilized outside the body and then placed in her uterus, is associated with an increased risk of both ectopic and heterotopic pregnancy.