PT  - JOURNAL ARTICLE
AU  - N. David Charkes
TI  - Sigmoidal Curves
DP  - 1998 Dec 01
TA  - Journal of Nuclear Medicine
PG  - 2196--2196
VI  - 39
IP  - 12
4099  - http://jnm.snmjournals.org/content/39/12/2196.2.short
4100  - http://jnm.snmjournals.org/content/39/12/2196.2.full
SO  - J Nucl Med1998 Dec 01; 39