TY - RPRT TI - Lethal mutations and balanced lethal systems in Aspergillus nidulans. AU - J L Azevedo AU - J A Roper PY - 1967 DO - 10.1099/00221287-49-1-149 UR - https://pubmed.ncbi.nlm.nih.gov/6064441/ ID - 6064441 ER -