1983
January January 1; 80 (1) : 1 - 319 January 15; 80 (2) : 321 - 651	February February 1; 80 (3) : 653 - 899 February 15; 80 (4) : 901 - 1158	March March 1; 80 (5) : 1159 - 1486 March 15; 80 (6) : 1487 - 1786
April April 1; 80 (7) : 1787 - 2095 April 15; 80 (8) : 2097 - 2416	May May 1; 80 (9) : 2417 - 2807 May 15; 80 (10) : 2809 - 3141	June June 1; 80 (11) : 3143 - 3542 June 15; 80 (12) : 3543 - 3878
July July 1; 80 (13) : 3879 - 4194 July 15; 80 (14) : 4195 - 4598	August August 1; 80 (15) : 4599 - 4874 August 15; 80 (16) : 4875 - 5169	September September 1; 80 (17) : 5171 - 5453 September 15; 80 (18) : 5455 - 5806
October October 1; 80 (19) : 5807 - 6145 October 15; 80 (20) : 6147 - 6430	November November 1; 80 (21) : 6431 - 6734 November 15; 80 (22) : 6735 - 7053	December December 1; 80 (23) : 7055 - 7373 December 15; 80 (24) : 7375 - 7701