Gels showing amplification by PCR and length variations in the ITS regions of medically important Candida isolates. Lane 1, C. albicans; lane 2, C. dubliniensis; lane 3, C. tropicalis; lane 4, C. parapsilosis; lane 5, C. guilliermondii; lane 6, C. krusei; lane 7, C. glabrata; lane 8, C. lusitaniae; lanes M, 100-bp DNA ladder.