Injection Site Tenderness. It is common to experience irritation and tenderness or discomfort if vitamin B12 supplementation is received by injection. These side effects tend to subside after receiving the shot.
The United States Postal Service recommends that mailboxes be 41-45 inches off of the ground and 6-8 inches back from the curb with a minimum recommendation of 4 feet off the ground for those people living in the city.
These specifications have been put in place to help make address reading easier. In the United States, first class mail necessities envelopes of the letter size. The dimensions must be between 5 inches and 11.5 inches wide, 3.5 to 6.125 inches high, and 0.007 to 0.25 inches thick. Post office preferred envelopes in Australia have 4 boxes with orange colored inks at the right hand part.