Symptom in search of a toxin: muscle spasms following bites by Old World tarantula spiders (Lampropelma nigerrimum, Pterinochilus murinus, Poecilotheria regalis) with review

N Ahmed, M Pinkham and D.A. Warrell

QJM: An International Journal of Medicine 102 ( 12 ): 851 - 857 , 2009