TY  - GEN
TI  - Extending life, enhancing life: : a national research agenda on aging 
SN  - 0309043999
U1  - 174 INS 
PY  - 1991///
CY  - Washington D C : National Academy Press
KW  - Aging - research
KW  - Aging - government policy - United States
N1  - Includes bibliographical references and index
ER  -