Query parameters:
ad — ad unit path, e.g. /23344240919/23344388336 (required)size — single size 728x90 or multi 728x90,970x90 (default 728x90)kv — page-level key-values, e.g. kv=oe_pick:1234,journal:gerontologyAskv — slot-level key-values, same format as kvdest — landing URL for the simulated click button (default https://example.com)nopix=1 — suppress OE pixel calls (debug only)Example: ?ad=/23344240919/23344388336&size=728x90&kv=oe_pick:138549538297