HARDY, P [Interruption of therapy on the occasion of a publication concerning the use of norethynodrel in the therapy of acne]. [electronic resource] - Bulletin de la Societe francaise de dermatologie et de syphiligraphie - 100-2 p. digital Publication Type: Journal Article Subjects--Topical Terms: Acne VulgarisAnimalsHumansHydrozoaNorethynodrelPublicationsPublishingRosacea