Adding L carnitine to antagonist ovarian stimulation doesn't improve the outcomes of IVF ICSI cycle in patients with polycystic ovarian syndrome: a double blind randomized clinical trial Journal of Ovarian Research Springer IV Carnitine Therapy Energy Boost & Metabolism Support Minnerva Clinic Carnitine traffic and human fertility ScienceDirect Comparison of short term and long term effects of peroral L carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications The Role of L Carnitine in Kidney Disease and Related Metabolic Dysfunctions