 ACTON, Mass., March 17, 2021 GLOBE NEWSWIRE -- Psychemedics Corporation NASDAQ: PMD announced that Robyn C. Davis was unanimously elected to serve on the Board of Directors of Psychemedics Corporation effective immediately. Ms. Davis will be filling the vacancy created by the untimely passing this past December of Clint Allen, a long- time and dedicated Psychemedics board member. 