1999
January 2 Jan; 318 (7175): 1 - 68 9 Jan; 318 (7176): 2 - 136 16 Jan; 318 (7177): 2 - 204 23 Jan; 318 (7178): 2 - 272 30 Jan; 318 (7179): 2 - 340	February 6 Feb; 318 (7180): 2 - 408 13 Feb; 318 (7181): 2 - 474 20 Feb; 318 (7182): 2 - 546 27 Feb; 318 (7183): 2 - 614	March 6 Mar; 318 (7184): 2 - 680 13 Mar; 318 (7185): 2 - 746 20 Mar; 318 (7186): 2 - 820 27 Mar; 318 (7187): 2 - 884
April 3 Apr; 318 (7188): 2 - 952 10 Apr; 318 (7189): 2 - 1018 17 Apr; 318 (7190): 2 - 1086 24 Apr; 318 (7191): 2 - 1154	May 1 May; 318 (7192): 2 - 1222 8 May; 318 (7193): 2 - 1298 15 May; 318 (7194): 2 - 1362 22 May; 318 (7195): 2 - 1430 29 May; 318 (7196): 2 - 1498	June 5 Jun; 318 (7197): 2 - 1566 12 Jun; 318 (7198): 2 - 1634 19 Jun; 318 (7199): 2 - 1708 26 Jun; 318 (7200): 2 - 1774
July 3 Jul; 319 (7201): 1 - 66 10 Jul; 319 (7202): 2 - 134 17 Jul; 319 (7203): 2 - 202 24 Jul; 319 (7204): 2 - 268 31 Jul; 319 (7205): 2 - 328	August 7 Aug; 319 (7206): 2 - 392 14 Aug; 319 (7207): 2 - 460 21 Aug; 319 (7208): 2 - 526 28 Aug; 319 (7209): 2 - 586	September 4 Sep; 319 (7210): 2 - 650 11 Sep; 319 (7211): 2 - 718 18 Sep; 319 (7212): 2 - 794 25 Sep; 319 (7213): 2 - 862
October 2 Oct; 319 (7214): 2 - 930 9 Oct; 319 (7215): 2 - 1014 16 Oct; 319 (7216): 2 - 1080 23 Oct; 319 (7217): 2 - 1845 30 Oct; 319 (7218): 2 - 1210	November 6 Nov; 319 (7219): 2 - 1278 13 Nov; 319 (7220): 2 - 1312 20 Nov; 319 (7221): 2 - 1380 27 Nov; 319 (7222): 2 - 1446	December 4 Dec; 319 (7223): 2 - 1510 11 Dec; 319 (7224): 2 - 1586 18 Dec; 319 (7225): 2 - 1654