![](/img/cover-not-exists.png)
The above letter was referred to the authors, who respond as follows:
Ventafridda, VittorioVolume:
2
Journal:
Annals of Oncology
DOI:
10.1016/s0923-7534(20)30676-1
Date:
October, 1991
File:
PDF, 2.45 MB
1991