Alternative medicine: Herbal drugs and their critical appraisal - Part II.- Virus population dynamics, fitness variations and the control of viral disease: an update.- Applications of yeast in drug discovery.- Sympathetic nervous system and experimental diabetes: role of adrenal medullary hormones.- From outer to inner space: Traveling along a scientific career from astrochemistry to drug research.- Index Vol. 57.- Index of titles, Vol. 1-57.- Author and paper index, Vol. 1-57.