RT Article T1 Cohort, age and period effects in the analysis of U. S. suicide patterns: 1933-1978 JF Suicide and life-threatening behavior VO 17 IS 3 SP 179 OP 194 A1 Wasserman, Ira LA English YR 1987 UL https://krimdok.uni-tuebingen.de/Record/1642751065 K1 Suizid