* Mullins RJ, Heddle R: Adverse reactions associated with echinacea: the australian experience. Ann Allergy Asthma Immunol, 88, 42-51, 2002 | * Mullins RJ, Heddle R: Adverse reactions associated with echinacea: the australian experience. Ann Allergy Asthma Immunol, 88, 42-51, 2002 |