The most recent guidelines for GBS can be found here: European Academy of Neurology/Peripheral Nerve Society Guideline on diagnosis and treatment of Guillain-Barré syndrome - PubMed (nih.gov).

A globally applicable guideline for the diagnosis and management of GBS in 10 steps can be found here: Diagnosis and management of Guillain-Barré syndrome in ten steps - PubMed (nih.gov).

The GBS | CIDP Foundation International is "a global nonprofit organization supporting individuals and their families affected by Guillain-Barre’ syndrome (GBS), chronic inflammatory demyelinating polyneuropathy (CIDP), Multifocal Motor Neuropathy (MMN) and related conditions through a commitment to support, education, research and advocacy."

The Guillain-Barré Syndrome (GBS) knowledge hub from The Global Health Network is "a platform for the dissemination of knowledge, guidelines, and research on GBS, stimulating collaboration between healthcare professionals and researchers in the field globally."