Outside Memorial Hermann ER, the medical staff moves a patient on a gurney so that an Army helicopter can transfer him to an outlying hospital.

UT-Houston's Joseph Salloum, M.D., a cardiology fellow, manages to smile after carrying dozens of patients down the stairwells of Memorial Hermann Hospital.

Medical staff assist the Army reserves in loading a patient to be transported to one of the several outlying hospitals that volunteered to take on extra patients in this time of crisis.

Evacuating Memorial Hermann Hospital, volunteers and UT-Houston medical staff ease a patient down the escalator.