Cite
APA Citation
Allwork, S. P., & Norton, R. (1976). surface ultrastructure of silicone rubber aortic valve poppetts after long-term implantation. A scanning electron microscope study of four poppets.. Thorax, 31(6), 742–752. http://access.bl.uk/ark:/81055/vdc_100137791744.0x00002a