This fifth volume collects the published works of Prof. Ugo Del Torto for the period 1964–1967, documenting a later phase of his academic activity. Organized chronologically or by research area, the compilation reflects developments in medical research and clinical scholarship during the 1960s. It likely includes journal articles, conference proceedings, and institutional reports, illustrating methodological evolution and professional engagement. Intended for specialists and historians of medicine, the volume serves as both a bibliographic record and a source for examining mid-century medical discourse.