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<p style="margin-top:0;margin-bottom:0">dear sir or madam</p>
<p style="margin-top:0;margin-bottom:0">i practice on pet scanner with a possitron source. My question is, if i have a pet scanner with 43 r-sectors and i want to visualize at paw ,for example the sector number 3, what command i put over there?</p>
<p style="margin-top:0;margin-bottom:0"><span style="color: rgb(51, 51, 51); font-family: Arial, Tahoma, Helvetica, FreeSans, sans-serif; font-size: 14.85px;">Yours faithfully</span><br>
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