What diseases are both koilonychia and leukonychia symptoms of?

The disease that koilonychia and Leukonychia are the symptoms of is Steatocystoma multiplex.

The disease that koilonychia and pica are the symptoms of is iron deficiency.

The disease that koilonychia and taurodontism are the symptoms of is Witkop syndrome.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.