1. Medcl Univ of Gdansk, Gdansk, Poland; Budinova 2, Prague, Czech Republic; Great Poland Lung Diseases Ctr, Poznan, Poland; Louisiana State Univ, New Orleans, LA; Pavlov State Medcl Univ, St. Petersburg, Russian Federation; R. Martinico, Sao Paulo, Brazil; Hosp Municipal de Oncologia Madame Curie, Buenos Aires, Argentina; Ligand Pharmaceuticals, San Diego, CA