"Attending physician" means the physician who has been selected by or assigned to the patient and who has assumed primary responsibility for the treatment and care of the patient; provided, however, that if the physician selected by or assigned to the patient to provide [...]

(1) "Attending physician" means the physician who has primary responsibility at the time of reference for the treatment and care of the patient.

"Attending physician" means the physician selected by or assigned to a patient to have primary responsibility for the treatment and care of the patient. Where more than one physician share such responsibility, any such physician may act as the attending physician [...]

(1) "Attending physician" means any surgeon or other physician attending the breast cancer patient.