SLC22A4 and lung carcinoma: Some mRNA-Seq data correlate with OCTN1 expression in lung cancer at a level somewhat higher than in normal lung tissue both in Mus musculus (Expression Atlas, https://tinyurl.com/mm5743cr (Choi et al., 2015) and humans (The Human Protein Atlas, https://tinyurl.com/2yhk7x7h).