This is an encouraging study that provides some evidence that the pregnancy and early outcome for babies may be better after embryos have been frozen.
It is of some concern that conclusions have been drawn, incorrectly... that we should routinely freeze all embryos and transfer them in a future menstrual cycle.
There is ample evidence to show that this would result in fewer pregnancies even if the outcome for those pregnancies were better.
More top news
Search teams were again looking for missing airman Corrie McKeague - this time joined by cadaver dogs trained to seek out human remains.
Donald Trump has dismissed pictures showing a smaller turnout to his inauguration compared to Barack Obama's in 2009.
Severe storms have ripped through the southern American state of Georgia leaving at least 11 dead and thousands without power.