The following uploaded PubMed IDs were not found: 4204545, 429571, 4700481, 1097548, 4190005, 5547246, 4364605, 805338, 4106461, 820712, 748044, 803511, 4163613, 14263640, 263330, 263473, 5050425, 4986007, 805310, 4105923, 5844230, 348354, 989048, 14328385, 30020, 14057854, 14263298, 389996, 4164659, 5573250, 436722, 4159618, 430949, 4787734, 4100682, 4366292, 5949446, 1275369, 1099355, 5066600, 4631079, 105867, 6071278, 263472, 319737, 5642019, 5840535, 13378610, 13872656, 509759, 4835133, 14163222, 4274980, 5033915, 942140, 1109212, 14015097, 4098399, 4926257, 107021, 5643199, 803298, 808728, 4133360, 4215643, 1150863, 4172459, 591624, 14330594, 536755, 14158361, 4214837, 4180972, 582025, 4456727, 4182132, 308799, 4831130, 582577, 4980221, 4114451, 14015096, 4200599, 4968525, 1096773, 73636, 467324, 108290, 4785434, 4621809, 4627386, 4747447, 4834865, 4208653, 14289486, 13033841, 4683889, 13947970, 451615, 413840, 809463, 4164697, 14158362, 500814
Most of the time, papers are missing because the paper was not published during the year range we have data for (1980- present).