No writing assistance was utilized in the production of this manuscript. Multiple birth rate has been the most significant risk of assisted reproductive technology from early in its use.

Transfer of multiple embryos for IVF was an early and important advance to improve procedure effectiveness. Along with the increase in live birth rate, this advance resulted in a three-decade long ...

Since the beginning of this year, copper prices have continued to fluctuate upward, with multiple bullish factors sequentially ... In summary, copper prices are unlikely to form a sustained downward ...