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url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyODQuOTI5IDI4NC45MjkiIHdpZHRoPSIyODQuOTI5cHgiIGhlaWdodD0iMjg0LjkyOXB4Ij4KICA8cGF0aCBmaWxsPSIjMjEyMTIxIiBkPSJNMjgyLjA4MiA3Ni41MUwyNjcuODA4IDYyLjI0Yy0xLjkwMi0xLjkwNi00LjA5My0yLjg1Ni02LjU3LTIuODU2LTIuNDcgMC00LjY2Ljk1LTYuNTYzIDIuODU2TDE0Mi40NjUgMTc0LjQ0IDMwLjI2MyA2Mi4yNGMtMS45MDMtMS45MDUtNC4wOTMtMi44NTUtNi41NjctMi44NTUtMi40NzUgMC00LjY2NS45NS02LjU2NyAyLjg1NkwyLjg1NiA3Ni41MTZDLjk1IDc4LjQxNyAwIDgwLjYwNyAwIDgzLjA4MmMwIDIuNDczLjk1MyA0LjY2MyAyLjg1NiA2LjU2NUwxMzUuOSAyMjIuNjkzYzEuOSAxLjkwMyA0LjA5MiAyLjg1NCA2LjU2NiAyLjg1NHM0LjY2LS45NSA2LjU2Mi0yLjg1NEwyODIuMDgyIDg5LjY0N2MxLjkwMi0xLjkwMyAyLjg0Ny00LjA5MyAyLjg0Ny02LjU2NSAwLTIuNDc1LS45NDYtNC42NjUtMi44NDgtNi41N3oiLz4KPC9zdmc+Cg==") no-repeat right 0 center/1.1rem;font-size:1.4rem}.inline-dropdown-field>select>option{padding-right:0}.inline-dropdown-field .error-list{font-size:1.4rem}.inline-dropdown-field .error-list>li{margin:0}.inline-dropdown-field .help-text{font-size:1.4rem;margin:0}.ncbi-header .agencies .nih{background:transparent url("data:image/svg+xml;base64,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") no-repeat center/cover}.ncbi-header .account .header-button{-webkit-transition:color 0.3s,background-color 0.3s,border-color 0.3s;transition:color 0.3s,background-color 0.3s,border-color 0.3s;margin-right:0;font-size:1.6rem;padding:1rem 2rem;height:3.9rem}@media screen and (max-width:1200px){.ncbi-header .account #account_info{padding:1rem 0.5rem;width:3.9rem;text-align:center}.ncbi-header .account #account_info .username{display:none}}.ncbi-header .account #account_info .fa-user{display:inline-block;width:2rem;height:2rem;margin:-0.5rem 0 -0.4rem;background:url("data:image/svg+xml;base64,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") no-repeat center/1.6rem}.ncbi-header .account #account_info .sr-only{position:absolute;left:-1000rem;top:-1000rem}.ncbi-header #account_popup{background-color:#ffffff;border:1px solid rgba(0,0,0,0.15);box-shadow:0 3px 1.4rem -0.4rem rgba(0,0,0,0.3);visibility:hidden;opacity:0;-webkit-transition:opacity 0.3s,visibility 0s linear 0.3s;transition:opacity 0.3s,visibility 0s linear 0.3s;display:block}.ncbi-header #account_popup.active{-webkit-transition-delay:0s;transition-delay:0s;visibility:visible;opacity:1}.ncbi-header #account_popup .ncbi-close-button{background:#ffffff url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA0OCA0OCIgd2lkdGg9IjQ4cHgiIGhlaWdodD0iNDhweCI+CiAgPHBhdGggZD0iTTM4IDEyLjgzbC0yLjgzLTIuODMtMTEuMTcgMTEuMTctMTEuMTctMTEuMTctMi44MyAyLjgzIDExLjE3IDExLjE3LTExLjE3IDExLjE3IDIuODMgMi44MyAxMS4xNy0xMS4xNyAxMS4xNyAxMS4xNyAyLjgzLTIuODMtMTEuMTctMTEuMTd6Ii8+Cjwvc3ZnPgo=") no-repeat center/2.4rem;opacity:.7;-webkit-transition:opacity 0.3s;transition:opacity 0.3s}.ncbi-header #account_popup 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.ncbi-full-name{font-size:2.4rem;line-height:3.2rem}}.ncbi-footer .ncbi-section .ncbi address{font-size:1.8rem;line-height:2.4rem}.ncbi-footer .ncbi-section .ncbi-undecorated-links li{line-height:2rem;margin-bottom:0.8rem}@media screen and (max-width:599px){.ncbi-footer .gov-agencies{padding-top:3rem;border-top-color:rgba(0,0,0,0.15)}}.ncbi-footer #footer_facebook{background:url("../../core/images/ncbi-footer-icons.svg") 0 -0px no-repeat}.ncbi-footer #footer_facebook:hover{background:url("../../core/images/ncbi-footer-icons.svg") 0 -32px no-repeat}.ncbi-footer #footer_twitter{background:url("../../core/images/ncbi-footer-icons.svg") 0 -64px no-repeat}.ncbi-footer #footer_twitter:hover{background:url("../../core/images/ncbi-footer-icons.svg") 0 -96px no-repeat}.ncbi-footer #footer_linkedin{background:url("../../core/images/ncbi-footer-icons.svg") 0 -128px no-repeat}.ncbi-footer #footer_linkedin:hover{background:url("../../core/images/ncbi-footer-icons.svg") 0 -160px no-repeat}.ncbi-footer #footer_youtube{background:url("../../core/images/ncbi-footer-icons.svg") 0 -192px no-repeat}.ncbi-footer #footer_youtube:hover{background:url("../../core/images/ncbi-footer-icons.svg") 0 -224px no-repeat}.ncbi-footer #footer_github{background:url("../../core/images/ncbi-footer-icons.svg") 0 -256px no-repeat}.ncbi-footer #footer_github:hover{background:url("../../core/images/ncbi-footer-icons.svg") 0 -288px no-repeat}@media screen and (min-width:720px){.ncbi-footer #footer_blog{background:url("../../core/images/ncbi-footer-icons.svg") 0 -320px no-repeat}.ncbi-footer #footer_blog:hover{background:url("../../core/images/ncbi-footer-icons.svg") 0 -352px no-repeat}.ncbi-footer #footer_support{background:url("../../core/images/ncbi-footer-icons.svg") 0 -384px no-repeat}.ncbi-footer #footer_support:hover{background:url("../../core/images/ncbi-footer-icons.svg") 0 -416px no-repeat}}.no-script-banner{line-height:2.2rem;padding-top:12px;padding-bottom:12px;background-color:#fff1d2;border-top:1px solid rgba(0,0,0,0.15);border-bottom:1px solid rgba(0,0,0,0.15);color:rgba(0,0,0,0.8);position:relative;z-index:3}.no-script-banner.expanded{box-shadow:0 0 2.5rem rgba(0,0,0,0.3);-webkit-transition:0.3s box-shadow;transition:0.3s box-shadow}.no-script-banner.hidden{height:0;opacity:0;padding:0;border:none;overflow:hidden;-webkit-transition:0.3s height,0.3s opacity,0.3s padding;transition:0.3s height,0.3s opacity,0.3s padding}.no-script-banner a,.no-script-banner a:hover,.no-script-banner a:visited{text-decoration:underline;color:rgba(0,0,0,0.8);display:inline-block}.no-script-banner a:hover{text-decoration:none}.no-script-banner .warning-message{padding-right:8.8rem;padding-left:1rem}@media screen and (min-width:55rem){.no-script-banner .warning-message{padding-left:6.7rem}.no-script-banner 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