Baby Fae body began generating isohaemagglutinins, but a suitable donor could not be found in time. Prior to the procedure, no infant heart transplant—even with human hearts—had been successfully performed due to a lack of infant human hearts. To address this issue, Bailey had become a pioneer in the research of cross-species heart transplants, which had included "more than 150 transplants in sheep, goats, and baboons". Multiple surgeons had previously experimented with baboon heart implants, leading some to speculate even that baboons could be farmed in the future for such purposes. When asked why he had picked a baboon over a primate
The Boy Who Was a King term. The film presents not only the life of the former Tsar, but also intertwines within the story vignettes of various Bulgarians, who were supporting him, sending him gifts, or merely tattooing his face on their body. The story is told through personal footage and vast amounts of archive material. The film received praise for its editing and use of archives with Variety's Robert Koehler writing that "Pic’s terrific use of archival footage includes an exiled Simeon interviewed in the early ’60s, disputing his playboy rep." and "Editing is aces." The Boy Who Was a King The Boy Who Was