... conception,design, interpretation of data and reading and approval of the finalmanuscript. LPM completed analysis and interpretation of quality of life dataand approved of the final manuscript. DV contributed ... enrollment,interpretation of data and reading and approval of the final manuscript. YCalso performed all statistical analysis.Competing interests The authors declare that they have no competing interests.Received: ... M, Medina P, Zamek R, et al: Phase I clinical and pharmacologicstudy of 13-cis-retinoic acid, interferon alfa, and paclitaxel in patients with prostate cancer and other advanced malignancies....