Joan Rivers' Malpractice Settlement 8 figures

TV is reporting that Joan Rivers' daughter got $10-$15 million from all the parties involved. The lawyers got 1/3 of course but this was a huge settlement. How did the parties come up with say $10 million? Let's assume all the Physicians involved settled for $1 million each. 1. Anesthesiologist- $1 million 2. ENT- $1 million 3. Gi- $1 million 4. GI center- $5 million? I can see maybe $8 million here but where does the other $2 million come from?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums