Dr. Lindsey Fitzharris is an author and medical historian. She is the creator of the popular blog, The Chirurgeon's Apprentice and the host of the YouTube video series Under the Knife.Dr. Lindsey Fitzharris is an author and medical historian. She is the creator of the popular blog, The Chirurgeon's Apprentice and the host of the YouTube video series Under the Knife.Dr. Lindsey Fitzharris is an author and medical historian. She is the creator of the popular blog, The Chirurgeon's Apprentice and the host of the YouTube video series Under the Knife.