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ผลลัพธ์ (อังกฤษ) 1:

His first PCR test on 22 July was negative.

ผลลัพธ์ (อังกฤษ) 2:

His first PCR result was negative.

ผลลัพธ์ (อังกฤษ) 3:

His first PCR test. On July 22, the result was negative.