Posibleng Mga Sanhi para sa Guam Disease Kakulangan ng Folic Acid Guam Disease Amyotrophic Lateral Sclerosis Type 2 Amyotrophic Lateral Sclerosis Type 10 Amyotrophic Lateral Sclerosis Type 6 Amyotrophic Lateral Sclerosis Type 8 Amyotrophic Lateral Sclerosis Type 11