ej-home, noindex, aspNetHidden, top-microbar-container, advertisement-content_top top-banner, top-banner__content--centered top-banner--low-opacity, ej-advertisement ej-advertisement-topcombo, ej-advertisement-content, ad-slot-container, main-wrapper, header, header__holder, header__layout-top, user-action-toolbar, user-menu user-info, user-menu__item user-menu__item--popup-container user-menu__item--login-popup-container dib, user-menu__link user-menu__link--login, fa fa-sign-in, user-menu-popup user-menu-popup--login, ejp-error-message, ejp-error-message-icon, wk-icon-filled-info, login-popup-error-message__account-locked-message, ejp-error-message-header, __cf_email__, login-popup-error-message__login-failed-message, login-popup-error-message__login-default-message, user-menu-popup__close wk-icon-close, user-menu-popup__top-block, user-menu-popup__title-block flex pb2 mb3, user-menu-popup__title ma0, login-popup-title, login-popup-no-user-account, user-menu-popup__link login-popup-link, user-menu-popup__link-centered-popup login-popup-link, box-ssologin-popup, user-menu-popup__sub login-popup__sub-text, b, user-registration__other-fields w-100, user-registration__wrapper user-registration__user_name w-100 mb3, user-registration__input-wrapper, pv3 ph4 ba br3 bg-transparent moon-gray user-registration__input user-name-email-address-reg-form, custom-icon, wk-icon-close-circle, wk-icon-check-circle, user-login-popup__username-error w-100 dn, user-registration__wrapper user-registration__password flex flex-wrap mb3 w-100, pv3 ph4 ba br3 bg-transparent moon-gray user-registration__input user-password-reg-form, user-login-popup__password-error w-100 dn, b user-registration__submit-btn ba white pointer dib disabled, mt4 i pr3, post-login-action, post-login-action-item-id, dib or-spacing, user-menu__item user-menu__item--popup-container user-menu__item--register-popup-container dib, user-menu__link user-menu__link--register, user-menu-popup user-menu-popup--register, user-menu-popup__title register-popup-title ma0, user-menu-popup__link, user-menu-popup__link-centered-popup, register-popup-link, user-menu-popup__sub, register-popup__sub-text, register-popup__sub-text2, user-registration__first-last w-100 cf, user-registration__wrapper user-registration__text w-100 w-50-ns mb3 fl, bg-transparent moon-gray user-registration__input user-name-fn-reg-form flex-auto, user-registration-popup__fn-error dn, user-registration__wrapper user-registration__text fl w-100 w-50-ns mb3, bg-transparent moon-gray user-registration__input user-name-ln-reg-form flex-auto, user-registration-popup__ln-error dn, user-registration__wrapper user-registration__email w-100 mb3, user-registration-popup__email-error w-100 dn, user-registration-popup__password-error w-100 dn, mb3 user-registration__select w-100, ba br3 bg-transparent moon-gray user-registration__input list-items list-items--mobile user-registration__ddl-selectize, user-registration-popup__ddl_profession-error dn, user-registration-popup__ddl_speciality-error dn, user-registration-popup__ddl_work_setting-error dn, mb3 user-registration__wrapper user-registration__text user-registration__zip w-100 mw23, txtzip pv3 ph4 ba br3 bg-transparent moon-gray user-registration__input user-zip-code-reg-form, user-registration-popup__zip-code-error dn, mb3 w-100, items-center mb3 checkbox-wrapper, pointer, mr2 user-registration__checkbox, user-registration__checkbox-wrap, user-registration__checkbox-square, dark-blue hover-dark-blue, user-menu__item dib, fa fa-envelope, user-menu__link, hideOnFixed, showOnFixed, fa fa-stop user-menu__dynamic-item-icon, wk-modal horizontally-centered small wk-modal-with-overlay wk-modal-small ejp-modal, wk-modal-content, wk-modal-header ejp-modal-header, wk-modal-title ejp-modal-title, js-close primary-button wk-button-icon wk-modal-close ejp-modal-close , fa fa-times, wk-modal-body, wk-field-item, wk-button-bar, wk-button-group-left, primary-button, js-close secondary-button, Popup-Overlay, etoc-popup ej-box-modal-drop-shadow, wk-field-body, wk-field-header, ej-error-message, ej-error-message-icon, ej-box-modal-style-1-input, logo-secondary white, logo-secondary-text, sticky-search, fa fa-search, header__layout-bottom, logo-main, logo-main-text, search-v2, search-wrapper, input-group, form-control searchText, input-group-btn, btn btn-default, advance-search, aspNetDisabled btnGlobalSearch, hfldKeywords, navbar navbar-default yamm , navbar-header, navbar-hamburger-button navbar-toggle collapsed pull-left, sr-only, icon-bar, navbar-hamburger-button__text, btn-group navbar-hover-color, btn btn-default navbar-button, js-top-navigation-menu-configuration, navbar-collapse collapse js-top-navigation-menu noindex ms-core-listMenu-horizontalBox, root ms-core-listMenu-root static, static selected, static selected menu-item ms-core-listMenu-item ms-displayInline ms-core-listMenu-selected ms-navedit-linkNode, additional-background ms-navedit-flyoutArrow, menu-item-text, ms-hidden, static, static menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode, static dynamic-children, static dynamic-children menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode, additional-background ms-navedit-flyoutArrow dynamic-children, dynamic, dynamic menu-item ms-core-listMenu-item ms-displayInline ms-navedit-linkNode, ms-core-webpartadder, ms-notif-box, delta-place-holder-main, main-content, dpl-row twocolumns flex flex-column, dpl-col main-content content, ms-webpart-zone ms-fullWidth, s4-wpcell-plain ms-webpartzone-cell ms-webpart-cell-vertical-inline-table ms-webpart-cell-vertical ms-fullWidth , ms-webpart-chrome ms-webpart-chrome-vertical ms-webpart-chrome-fullWidth , ms-WPBody noindex , ms-rte-embedcode ms-rte-embedwp, ms-clear, ms-PartSpacingVertical, content-box cb-collapsible wp-current-issue, content-box-body, thumb-image-container coverImage, cover-image, preview-image, subscribe-to-etoc, wk-modal horizontally-centered small fixed-vertical ejp-modal, fa fa-times cross-span-hack, primary-button wk-button-icon wk-modal-close ejp-modal-close, aspNetDisabled, secondary-button, fav-items-added, wk-modal wk-modal-with-overlay wk-modal-small ejp-modal, wk-icon-close primary-button wk-button-icon wk-modal-close ejp-modal-close , mb4, wk-field-notice f3 pa3 mb4, f3 pa3, wk-modal-table, wk-modal-cell, wk-modal horizontally-centered small wk-modal-with-overlay wk-modal-small ejp-modal email-to-colleague, js-main-panel, primary-button wk-button-icon wk-modal-close ejp-modal-close js-close , js-error-message-div ej-error-message-panel, js-error-message-label, js-name, js-email, js-collegaues-email-lbl, wk-field-body no-bottom-margin, js-collegaues-email, ej-form-comments, js-message, js-send-me-copy, js-send-button primary-button grecaptcha-email-colleague-d2300a94e4e2463db570e69264ed9177, secondary-button js-close, wk-field-item wk-email-colleague-captcha-bar, div-recaptcha-container, js-success-message-panel, primary-button js-close, js-error-message-panel, wk-modal wk-modal-with-overlay wk-modal-small ejp-modal horizontally-centered, primary-button wk-button-icon wk-modal-close ejp-modal-close , content-box, article-list-title, article-list, wp-feature-articles, ej-article-input-fluid article, chkSelect, article-thumb, , authors, featuredArticleCitation, journalTitleInSearch, ej-featured-article-doi, article-precis, fa fa-star-o, fa fa-file-pdf-o, fa fa-copyright, article-actions, ejp-indicator ejp-indicator--open, fa fa-plus-square-o, fa fa-minus-square-o, panel panel-default, dpl-col main-content aside, ms-hide , ejp-login-container redesign-table-of-contents-wrapper mb4, ejp-login-box, ejp-login flex flex-column, ejp-login__form mb6, ejp-login__heading mb3 pr3 tc, ejp-login__message ejp-login__message--top w-100, mb3, ejp-login-standard, sso-other-options, ejp-login__message, ejp-login__form, js-login-ctrl pr3, form-control js-submit login-form-username, form-control js-submit login-form-password, ejp-login__actions, b db w-100 tc ejp-login__submit-btn btn-login, ejp-login__links mt4 tc i pr3, ejp-login__info, pb2, mt0 mb0, forgot-psswd-ctrl pl4-ns pr6-ns ph0, infoBox box-forgotpwd, ejp-forgot-password, ejp-forgot-password__message, form-control email-textbox, btn btn-default btn-gray grecaptcha-forgot-password-12d8b5ab73d8461bbca9b613809eff56, btn btn-default btn-gray, box-sentpwd, content-box cb-collapsible, pull-right, fa fa-rss-square, content-box-body content-box-body-tabs, ej-tabs ej-tabs--default ej-tabs--most-popular flex mt4, ej-tabs__item ej-tabs__item--active, ej-tabs__link, ej-tabs__spinner fa fa-spinner fa-spin, ej-tabs__item, content-box-body-list content-body-tabs, dataUnavailableText, more, ej-advertisement ej-advertisement-middle, js-ejp-universal-content-webpart, js-ejp-universalTrendingArticleList-webpart, js-ejp-universalMostPopular-webpart, js-ejp-multimedia-webpart, js-ejp-hero-webpart, ej-advertisement ej-advertisement-bannercombo, ej-advertisement ej-advertisement-bottom, ms-hide, ejp-footer, container, ejp-footer__back-to-top-link, fa fa-angle-up b ejp-footer__back-to-top-link-icon, ejp-footer__main-content, ejp-footer__smart-control-section, ejp-footer__smart-control-section-wrapper js-section-alert, ejp-footer__smart-control-section-image-container, ejp-footer__smart-control-section-text-holder, js-section-alert__content, ejp-footer__smart-control-section-info, js-section-alert__email, js-section-alert--error, js-section-alert__subscribe-button, ejp-footer__info-holder, ejp-footer__info-left-wrapper, ejp-footer__info-block, ejp-footer__info-block-header, ejp-footer__info-block-two-col-list, ejp-footer__info-right-wrapper, ejp-footer__info-block ejp-footer__info-block--custom-service, ejp-footer--show-on-mobile, ejp-footer__contacts-wrapper ejp-footer__email-settings, ejp-footer__contacts-wrapper ejp-footer__phone-settings, ejp-footer--show-on-mobile ejp-footer__phone-settings--version, ejp-footer__phone-settings--holder, ejp-footer__bottom-links, ejp-footer__useful-links, ejp-footer__copyright-block, js-ad-config, cookie-jar, cookie-jar-content, button,