| LEADER | 00518nam a2200145 u 4500 | ||
|---|---|---|---|
| 001 | 000219261 | ||
| 005 | 20090922145409.0 | ||
| 008 | 090731 ||||| und | ||
| 035 | |a 9236295 | ||
| 040 | |a Sistema de Bibliotecas de Universidad de Costa Rica | ||
| 082 | 0 | |a 570.151.95 |b K27e |2 22 | |
| 245 | 1 | 0 | |a Incidence-prevalence relationships / |c Niels Keiding |
| 773 | 0 | |7 nnam |t Eight contributions to encyclopedia of biostatistics | |
| 912 | |a 22-SEP-2009 - SALAZAR ALVAREZ, CLAUDIO | ||
| 917 | |a 31-JUL-2009 - ALVARADO MONGE, KATTIA YENORY | ||