MedPage Today has released the latest edition of the Investigative Roundup, which summarizes key investigative news from healthcare. The first case involves internal emails about a hepatitis B vaccine study. Robert F. Kennedy's team pushed for the controversial study, which was published in Rolling Stone. Another story describes the case of a woman who died while waiting for an abortion. The third point deals with the increase in drug prices. The article does not provide specific statistics or detailed study findings. These events represent a selection of the week's best investigative reporting.