| Urologic nursing : official journal of the American Urological Association Allied | UROLOGIC NURSING : OFFICIAL JOURNAL OF THE AMERICAN UROLOGICAL ASSOCIATION ALLIED | 1053-816X |
| Urologic Oncology: Seminars and Original Investigations | UROL ONCOL-SEMIN ORI | 1078-1439 |
| Urological Research | UROL RES | 0300-5623 |
| Urological Science | UROLOGICAL SCIENCE | 1879-5226 |
| Urologiia (Moscow, Russia : 1999) | UROLOGIIA (MOSCOW, RUSSIA : 1999) | 1728-2985 |
| Urology | UROLOGY | 0090-4295 |
| Urology Annals | UROLOGY ANNALS | 0974-7796 |
| Urology Case Reports | UROLOGY CASE REPORTS | 2214-4420 |
| Urology Journal | UROL J | 1735-1308 |
| Urology Practice | UROLOGY PRACTICE | 2352-0779 |
| Urology Times | UROLOGY TIMES | 0093-9722 |
| Uroonkoloji Bulteni-Bulletin of Urooncology | UROONKOLOJI BULTENI-BULLETIN OF UROONCOLOGY | 2147-2270 |
| Ursus | URSUS | 1537-6176 |
| URVIO-Revista Latinoamericana de Estudios de Seguridad | URVIO-REVISTA LATINOAMERICANA DE ESTUDIOS DE SEGURIDAD | 1390-3691 |
| US Cardiology Review | US CARDIOLOGY REVIEW | 1758-3896 |
| US Catholic Historian | US CATHOLIC HISTORIAN | 0735-8318 |
| US Department of Agriculture, Forest Service - Resource Bulletin | US DEPARTMENT OF AGRICULTURE, FOREST SERVICE - RESOURCE BULLETIN | 0888-9708 |
| US Endocrinology | US ENDOCRINOLOGY | 1758-3918 |
| US Neurology | US NEUROLOGY | 1758-4000 |
| U.S. Pharmacist | US PHARMACIST | 0148-4818 |
| Us Wurk, Tydskrift Foar Frisistyk | | 0042-1235 |
| USDA Forest Service - General Technical Report PNW | USDA FOREST SERVICE - GENERAL TECHNICAL REPORT PNW | 0887-4840 |
| USDA Forest Service - General Technical Report RMRS-GTR | USDA FOREST SERVICE - GENERAL TECHNICAL REPORT RMRS-GTR | 0277-5786 |
| USDA Forest Service - Research Note PNW-RN | USDA FOREST SERVICE - RESEARCH NOTE PNW-RN | 0887-7262 |
| USDA Forest Service - Research Note RMRS-RN | USDA FOREST SERVICE - RESEARCH NOTE RMRS-RN | 0502-4994 |
| USDA Forest Service - Research Papers PNW-RP | USDA FOREST SERVICE - RESEARCH PAPERS PNW-RP | 0882-5165 |
| USDA Forest Service - Research Papers RMRS | USDA FOREST SERVICE - RESEARCH PAPERS RMRS | 0502-5001 |
| USDA Forest Service - Resource Bulletin PNW-RB | USDA FOREST SERVICE - RESOURCE BULLETIN PNW-RB | 0748-1284 |
| User Modelling and User-Adapted Interaction | USER MODEL USER-ADAP | 0924-1868 |
| Uspekhi Fiziki Metallov-Progress in Physics of Metals | USPEKHI FIZIKI METALLOV-PROGRESS IN PHYSICS OF METALS | 1608-1021 |
| Uspekhi Fiziologicheskikh Nauk | USPEKHI FIZIOLOGICHESKIKH NAUK | 0301-1798 |
| Uspekhi Khimii | USP KHIM+ | 0042-1308 |
| Uspekhi Khimii | | |
| Usuteaduslik Ajakiri | | 1406-6564 |
| Utbildning & Demokrati-tidskrift För Didaktik Och Utbildningspolitik [education & Democracy-journal for Didactics and Educational Policy | | 1102-6472 |
| Utilitas Mathematica | UTILITAS MATHEMATICA | 0315-3681 |
| Utilitas | | 0953-8208 |
| Utilities Policy | UTIL POLICY | 0957-1787 |
| Utopia y Praxis Latinoamericana-Revista Internacional de Filosofia Iberoamericana y Teoria Social | UTOPIA Y PRAXIS LATINOAMERICANA-REVISTA INTERNACIONAL DE FILOSOFIA IBEROAMERICANA Y TEORIA SOCIAL | 1316-5216 |
| Utopian Studies | UTOPIAN STUDIES | 1045-991X |
| Utrecht Journal of International and European Law | UTRECHT JOURNAL OF INTERNATIONAL AND EUROPEAN LAW | 2053-5341 |
| Utrecht Law Review | UTRECHT LAW REVIEW | 1871-515X |
| Utrechtse Historische Cahiers | | 0169-5886 |
| UUM Journal of Legal Studies | UUM JOURNAL OF LEGAL STUDIES | 2229-984X |
| Uwm Law Review | | 2080-9670 |
| VacciMonitor | VACCIMONITOR | 1025-028X |
| Vaccine | VACCINE | 0264-410X |
| Vaccine Reports | VACCINE REPORTS | 2405-7843 |
| Vaccine: X | VACCINE: X | 2590-1362 |
| Vaccines | VACCINES | 2076-393X |
