TY - JOUR T1 - The Only Thing Constant Is Change JF - Journal of Nuclear Medicine Technology JO - J. Nucl. Med. Technol. SP - 6A LP - 6A VL - 41 IS - 2 AU - Brenda King Y1 - 2013/06/01 UR - http://tech.snmjournals.org/content/41/2/6A.abstract N2 - ER -