1972
January January; 90 (1): 1 - 342	February February; 90 (2): 343 - 594	March March; 90 (3): 597 - 846
April April; 90 (4): 851 - 1132	May May; 90 (5): 1133 - 1414	June June; 90 (6): 1415 - 1669
July July; 91 (1): 1 - 325	August August; 91 (2): 341 - 619	September September; 91 (3): 621 - 834
October October; 91 (4): 835 - 1144	November November; 91 (5): 1145 - 1391	December December; 91 (6): 1393 - 1548