TY  - RPRT
TI  - Using the proportional hazards model to study heart valve replacement data.
AU  - B D Bunday
AU  - V A Kiri
AU  - K D Stoodley
DO  - 10.3109/14639239209012136
UR  - https://pubmed.ncbi.nlm.nih.gov/1640775/
ID  - 1640775
ER  -