Further studies demonstrating an increased erythemal threshold following oral methoxsalen.
D004890:Erythema; D006801:Humans; D008730:Methoxsalen / Q000494:pharmacology*; D012879:Skin Physiological Phenomena; D013472:Sunlight
D008730:Methoxsalen
METHOXSALEN/pharmacology; SKIN/physiology; SUNLIGHT