https://www.yearbook-ers.jle.com/e-docs/maladies_des_neurones_moteurs_et_exposition_professionnelle_au_champ_magnetique_332417/yb_breve.phtml 2022 France journal article effects of exposure to external cause, nos neurons magnetic fields Occupational disease occupational diseases motor neuron disease, nos occupational exposure Motor neuron disease Diseases motor neuron disease