Cancer researchers are looking for thousands of Black women to lend their voices and experiences to a 30-year study. The American Cancer Society (ACS) launched its “VOICES of Black Women” research that will study 100,000 women over 30 years. It is the largest and longest cancer study of Black women in the U.S. ever, said Madeline Long, an ambassador with the nonprofit group. “That type of data doesn’t exist for us,” Long told WTOP. “This is a mo…