Sentence:  Our own studies in which bronchial artery pulmonary artery anastomoses were <WSD>demonstrated</WSD> , were accomplished by injecting the bronchial artery first with no pressure on the pulmonary artery or vein , and then by injecting the pulmonary artery and vein afterwards . 
Meaning of the word marked with <WSD> tags:  give an exhibition of to an interested audience