TY  - RPRT
TI  - [Prolonged intergenesic period. A high risk factor?].
AU  - R Henríquez
AU  - S Valenzuela
AU  - C Trujillo
AU  - S Acuña
PY  - 1989
UR  - https://pubmed.ncbi.nlm.nih.gov/2490915/
ID  - 2490915
ER  -