After meeting with Doctor Mona Hanna - Attisha Walling issued an advisory on lead while the state still had issue with the study .
Doctor Mona Hanna - Attisha is the lead doctor of the Hurley Hospital Lead Study .
After meeting with Doctor Mona Hanna - Attisha , the lead doctor of the Hurley Hospital Lead Study , Walling issued an advisory on lead while the state still had issue with the study .