"Precancerous Conditions pathology Popular Works" . . "Precancerous Conditions pathology Popular Works." . "Neoplasms prevention & control Popular Works" . . "Neoplasms prevention & control Popular Works." . "Neoplasms prevention & controL Popular Works." . "Clinical Trials as Topic statistics & numerical data" . . "Neoplasms prevention & control" . . "Therapie." . . "Precancerous Conditions pathology" . . . . "Präkanzerose." . . "Krebs (Medizin)" . . "Clinical Trials as Topic statistics & numerical data Popular Works" . . "Clinical Trials as Topic statistics & numerical data Popular Works." . "Pathophysiologie." . . . . "Allgemeine Darstellung" . . . . . . . . . . . . "Precancer : the beginning and the end of cancer" . . . . . . . . .