. .the presumptive leader is not defined, which leads to uncertainty and delays when leadership and action is needed,'' the report says. .harvard medical school: "cgrp: a new era for migraine treatment." . january 2013 (18) . . . explore xinhuanet http://lm360.us/Gutieres-daughter-of-Dodich-from-San-Patrizio?Malvinnei=239 advertisement .: "fremanezumab for the preventive treatment of chronic migraine." . .richard lipton, md, director, montefiore headache center; edwin s. lowe professor and vice chairman of neurology, albert einstein college of medicine. .