Example image of eyePlorer eyePlorer map for 'Cramp': The Cramps Wolfsangel Blood Calcium Potassium Sodium Colic Stomach Flexion Hypoxia (medical) Salt Hypocalcaemia Hypokalemia Multiple sclerosis Restless legs syndrome Varicose veins Calcium in biology Electrolyte Tetany (medical sign) Interstitial fluid Osmosis Endoplasmic reticulum Muscle contraction Troponin Lactic acid Hyperinsulinemia Insulin Concentration Glucagon Glucose Hypoglycemia Reactive hypoglycemia Adverse effect Myalgia Statin Hypothyroidism Anaerobic respiration Quinine Food and Drug Administration (United States) Smooth muscle Intestine Kidney stone Uterus Abdomen Menstrual cycle Ibuprofen Paracetamol Endometriosis Skeletal muscle Arches of the foot