摘要：The feeling of the reaching of a crucial turning point is shared by the whole spectrum of
sciences. The main features of this turning point are basically identical across different disciplines
and can be interpreted as a re-location of the most relevant level of explanation (and consequently
intervention for more applicative fields) from the microscopic to the so called mesoscopic level. Here,
the character of the mesoscopic approach in drug development field will be briefly commented
关键词：Key words: network pharmacology, target, systems biology, biocomplexity.
