1 This is the primary investigation for all causes and is especially important when one has had a traumatic incident like a fall or a road accident.  MRI helps in diagnosis of injuries and abnormalities like slip disc, intervertebral disc protrusion, nerve compression, and so on.
However, the equinox marks  the changes of seasons and September 22nd or 23rd is the normal  date for the equinox. Therefore, prior to the equinox, September is  technically summer in the northern hemisphere and changes to fall  at the equinox. Conversely, in the southern hemisphere, prior to  the equinox, September is considered winter and changes to spring  at the equinox. 2 people found this useful.
In North America, summer is often fixed as the period from the summer solstice (June 20 or 21, depending on the year) to the fall equinox (September 22 or 23, again depending on the year). Therefore, Sept. 22 was the last day of summer and the beginning of the 2010 autumnal equinox, which officially began at 11:09 p.m. EST., the full moon having peaked the following morning at 5:17 a.m. EST which marked it as the first day of fall in the Northern Hemisphere.