Retraction notice to “Sun exposure related methylation in malignant and non-malignant skin lesions” [Cancer Letters 245/1-2 (2007) 112-120]Sathyanarayana, Ubaradka G.; Moore, Angela Yen; Li, Lin; Padar, Asha; Majmudar, Kuntal; Stastny, Victor; Makarla, Prakash; Suzuki, Makoto; Minna, John D.; Feng, Ziding; Gazdar, Adi F. · Cancer Letters · 2018