RT Journal Article SR Electronic T1 From pollen count to pollen potency: the molecular era of aerobiology JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 898 OP 900 DO 10.1183/09031936.00096413 VO 42 IS 4 A1 Lorenzo Cecchi YR 2013 UL http://erj.ersjournals.com/content/42/4/898.abstract AB