title: Diagnosis of pulmonary alveolar microlithiasis.
authors.affiliation: Attending Physician at Hospital das Clínicas - Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (HCFMRP-USP), MD, Radiologist at MED - Medicina Diagnóstica, Ribeirão Preto, SP, Brazil. E-mail: marcelk46@yahoo.com.br .
authors.forename: Marcel Koenigkam
authors.initials: MK
authors.lastname: Santos