Do evidence suggesting that the keratinized portions of the upper and lower lid margins make complete contact during deliberate blinking?
Counterintuitively, the keratinized portions of the upper and lower eyelid margins frequently do not make full contact during what appears to be complete blinking.
Although alveolar macrophages infected in vitro are more permissive for HIV-1 replication than PBM, this difference could not be demonstrated in vivo.