Boyett B, Wiest K, McLeod LD, Nelson LM, Bickel WK, Learned SM, Heidbreder C, Fudala PJ, Le Moigne A, Zhao Y. Assessment of craving in opioid use disorder: psychometric evaluation and predictive validity of the opioid craving VAS. Drug Alcohol Depend. 2021 Dec 1;229(Pt B):109057. doi: 10.1016/j.drugalcdep.2021.109057
Alguacil J, Kogevinas M, Silverman DT, Malats N, Real FX, Garcia-Closas M, Tardon A, Rivas M, Tora M, Garcia-Closas R, Serra C, Carrato A, Pfeiffer RM, Fortuny J, Samanic C, Rothman N. Urinary pH, cigarette smoking and bladder cancer risk. Carcinogenesis. 2011 Jun;32(6):843-7. doi: 10.1093/carcin/bgr048 PMID 21402590