Haem toxicity provides a competitive advantage to the clinically relevant small colony variant phenotype.

Microorganisms encounter toxicities inside the host. Many pathogens exist as subpopulations to maximize survivability. Subpopulations of include antibiotic-tolerant small colony variants (SCVs).

Parental loss before the age of 16 years: a comparative study of patients with personality disorder and patients with schizophrenia in a high secure hospital's population.

There is a considerable body of literature supporting an association between separation from parent in childhood and later personality disorder. This study compares a 10-year cohort of high secure hospital patients who had either a personality disorder or schizophrenia, but with no other significant psychiatric comorbidity. The information source was the Special Hospitals Case Register.