A. Greenberg: Cautionary Comments Concerning the Use of (PAR)
275
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14
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17
18
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20
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21
22
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26
Figure 1. Description of the chemical structures of PAR
275
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14
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18
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~9b$oo$~ DO 0 0 0 DO 0 0 00
21
22
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26
Figure 1. Description of the chemical structures of PAR