Lane, P R Making the use of isotretinoin safer. [electronic resource] - CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne Sep 1989 - 376 p. digital Publication Type: Letter ISSN: 0820-3946 Subjects--Topical Terms: Contraceptive Agents, Female--administration & dosageFemaleHumansIsotretinoin--administration & dosageThalidomide--administration & dosage