doi: 10.1001/archneur.60.9.1296
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One important feature may be neurogenic claudication which is the onset and worsening of pain, weakness, numbness, tingling, heaviness, or fatigue sensation in the hips, buttocks, and lower limbs that is exacerbated with standing and walking, and improved with sitting or leaning forward on an object such as a shopping cart or walker
Mech Ageing Dev 127(5):444450 van der Put NMJ, Gabrels F, Stevens EMB, Smeitink JAM, Trijbels FJM, Eskes TKAB, van den Heuvel LP, Blom HJ (1998) A second common mutation in the methylenetetrahydrofolate reductase gene: an additional risk factor for neural-tube defects
Neuropeptides transmit signals within the central nervous system
Choose a site (abdomen, thigh, or upper arm) and clean it with a fresh alcohol swab, letting it dry fully [11]