what was the "membrane" in diphtheria?

[Developmental Biology] By What Process Does The Perichondrium Become The Periosteum?

Study of different types of ultra-processed foods shows highest mortality risk is associated with consumption of Meat/poultry/seafood based ready-to-eat products (processed meats)

ELI5: Why are heart attack symptoms generally different in men versus women?

A crucial system of ocean currents is heading for a collapse that 'would affect every person on the planet'

Veterans exposed to chemical in water at Camp Lejeune faced a 70% higher Parkinson’s risk, study says

Analysis of over two dozen melatonin “gummies” found inconsistent amounts of melatonin - in one product the amount of melatonin was 347% higher than on label; this increases the risk of overdosing, especially in children

Man arrested for allegedly trying to open emergency exit, stabbing flight attendant

Video game playing causes no harm to young children's cognitive abilities - regardless of duration of game playing and video game genre, study finds

Cleaner fish recognize self in a mirror via self-face recognition like humans; study raises possibility of self-awareness in fish

Study shows each 10% increase in ultraprocessed food consumption was associated with a 2% increase in developing any cancer, and a 19% increased risk for being diagnosed with ovarian cancer

More than 7 million incorrect diagnoses made in US emergency rooms every year, government report finds