A process for purifying a lipid composition having predominantly neutral lipid components having at least one long chain polyunsaturated fatty acid is disclosed. The method also includes a step of placing an ultrasonic tool in contact with the opposite surfaces of the flying leads via the coating layers, and applying ultrasonic vibration from the ultrasonic tool in a state where the flying leads are pressed onto the bonding terminals to ultrasonically bond the flying leads and the bonding terminals together. A source of electromagnetic radiation is placed at one of the focal points of the first reflector to produce radiation that converges at the second focal point of the first reflector. The non-woven fabric component comprises synthetic fibers. The compounds can: alter the number of nicotinic cholinergic receptors of the brain of the patient, exhibit neuroprotective effects, and when employed in effective amounts, not result in appreciable adverse side effects.