TY - JOUR T1 - Measurement of Gallbladder Ejection Fraction JF - Journal of Nuclear Medicine JO - J Nucl Med SP - 1544 LP - 1546 VL - 44 IS - 9 AU - Charles C. Chen AU - Gordon T. Campbell Y1 - 2003/09/01 UR - http://jnm.snmjournals.org/content/44/9/1544.abstract N2 - ER -