RT Article T1 Age at first use of alcohol and risk of heavy alcohol use: A population-based study JF A Fast Semiautomatic Algorithm for Centerline-Based Vocal Tract Segmentation VO Article ID 721761 A1 Liang, Wenbin A2 Chikritzhs,Tanya LA English YR 2013 UL https://krimdok.uni-tuebingen.de/Record/1912452553 DO 10.1155/2013/721761