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 \ \\/ //   / _ \\   /_   _//   / _ \\  | || | || 
  \   //   | / \ ||    | ||    / //\ \\ | '--' || 
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 `-`  --`   `---`    `--`     `-`   `-` `-`  `-`

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Text this: Blood cholinesterase activity levels of farmers in winter and hot season of Mae Taeng District, Chiang Mai Province, Thailand