And then you get into whose embryos are these, anyway?" Blacks traditionally have had a higher rate of multiple births than whites.
In the complex, expensive and emotionally charged world of fertility treatment, doctors are sounding a call to arms to reverse the soaring rate of multiple births.
And the rate of multiple births in this country has skyrocketed in recent years because of the increased use of ovulation-stimulating drugs and in vitro fertilization.
Scotland's notably high rate of multiple sclerosis, which is also linked to lack of vitamin D, has prompted medical experts to call for food sold there to be fortified with it.
The number of twin births rose more than 50percentt from 1980 to 1997, while the number of triplets quadrupled -- with white women older than 45 having the highest rate of multiple births.
The rate of multiple births has increased over the last two decades.
Scotland's Orkney Islands have the highest rate of multiple sclerosis (MS) in the world, according to a major new study.
Although the global rate of multiple sclerosis (MS) is low, a few studies have documented high costs.
Therefore, the total rate of multiple job-holders in our sample was 30 % a significantly higher value than the 7.4%% shown in national statistics from 2009.
In Switzerland, the rate of multiple job-holders is gradually growing, increasing from 4%% in 1994 to 7.4%% in 2009 (Bundesamt für Statistik 2010).
The wellbore length and the number of micro-holes have the greatest influence on the production rate of multiple radial horizontal micro-holes.
