https://chroniclingamerica.loc.gov/lccn/sn92051227/1918-02-15/ed-1/seq-9/

The exposure to diferent light spectrums produces a colored light and the magnectic meridian, enabling specific disease diagnosis: "Malaria discloses itself to the certain shde of blue light, influenza or 'the grippe' to red-green." The column is authored by the author "Edwin Bowers," a fiction of Benarr Macfadden, a nutritionist, frequent nemesis of the AMA, and anti-vaccine advocate. President Wilson is called upon to intervene in the shipyard strikes, and the coal shortage continues to have a grip on the north-east.

Source: "Colored Lights New Discovery for Diagnosis," Bridgeport Times and Evening Farmer, Bridgeport, Connecticut, February 16, 1918. Page 9, Column 3.