In fact there are 8 different blood groups found in the world, but apart from these 8 groups we identify "O Negative" is the only universal blood donor group, so in extreme emergency situations we preferred O negative blood group peoples. Here we found how health organizations are refining their O Negative blood groups especially for emergency situations. http://urgentcarenow.com/what-is-urgent-care
shanebernard512 February 5, 2013
at 10:26pm
In fact there are 8 different blood groups found in the world, but apart from these 8 groups we identify "O Negative" is the only universal blood donor group, so in extreme emergency situations we preferred O negative blood group peoples. Here we found how health organizations are refining their O Negative blood groups especially for emergency situations.
http://urgentcarenow.com/what-is-urgent-care