戴维氏病（龈粘膜大量出血）

David and Jonathan

David

valve-sparing aortic root replacement

Keteleeria davidiana (Bertr.) Beissn.;cow-tail fir.;David kete leeria

David's poplar root bark

lyre of David

David's poplar leaf

David peach【园艺】;Prunus davidiana Franch【园艺】