The author was a good doctor because even though he was told he would never be a surgeon, he threw away his fears and operated on Robin. After the operation, Robin was completely healed. Though the author was told he would never be a surgeon, he proved everyone wrong by throwing away his fears and worked hard.
I'd say facts and statistics and find the difference of performance between students with inconsistencies and students Sith consistent bedtimes.
I'd say it would be the table to the right