Robert Harding

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1348-2149 - Bacterium responsible for syphilis. Electron micrograph of Treponema pallidum on cultures of cotton-tail rabbit epithelium cells (Sf1Ep).Treponema pallidum is the causative agent of syphilis. In the United States, over 35,600 cases of syphilis were repor
1348-1151 - Syphilis bacterium. Treponema pallidum subsp pallidum on cultures of cotton tail rabbit epithelium cells Sf1Ep Treponema pallidum is the causative agent of syphilis In the United States over 35 600 cases of syphilis were reported by health officials in 1
1348-1152 - Syphilis bacterium. Treponema pallidum subsp pallidum on cultures of cotton tail rabbit epithelium cells Sf1Ep. Treponema pallidum is the causative agent of syphilis In the United States over 35 600 cases of syphilis were reported by health officials in
1116-42732 - Agriculture - Large field of mature defoliated high-yield stripper cotton at harvest stage in Autumn. This crop has a yield potential of 3 to 4 bales per acre / West Texas, USA.
1116-42731 - Agriculture - Large field of mature defoliated high-yield stripper cotton at harvest stage in Autumn. This crop has a yield potential of 3 to 4 bales per acre / West Texas, USA.