Institution: | (1) Regional Cancer Center, Trivandrum, India, IN;(2) The Johns Hopkins University, Baltimore, MD, USA, TP;(3) Cancer Pain Relief Unit, Kidwai Memorial Institute of Oncology, Bangalore, India, IN;(4) The Johns Hopkins Oncology Center, 600 North Wolfe Street, Baltimore, MD 21287, USA Tel.: 410–955–8837 Fax: 410–955–0125 email: grossman@welchlink.welch.jhu.edu , TP |