. 1987 May;169(5):2326.
Two Gene Clusters of Rhizobium meliloti Code for Early Essential Nodulation Functions and a Third Influences Nodulation Efficiency
PMCID: PMC212175
This corrects the article "Two gene clusters of Rhizobium meliloti code for early essential nodulation functions and a third influences nodulation efficiency." in volume 167 on page 881.