Claudio Baracchini, Elsa Azevedo, Uwe Walter, João Sargento-Freitas, Branko Malojcic
Neurosonology Survey in Europe and Beyond
Ultrasound international open
nowadays renewed interest bone changes experimental clinical nephrology however need understanding peculiarity bone traced back 5th century bc empedocles acragas put forward theory world made air water fire earth governed love hate observing various body tissues strove demonstrate consisted 4 elements assembled different mathematical ratios logos blood considered perfect tissue ratio elements one bone unusual tissue made 2 parts earth 2 parts water 4 parts fire kind reasoning could considered first cry birth quantitative chemistry