00374nas a2200157   4500000000100000008004100001260001300042653001200055653001100067653002000078100002100098245006600119300001000185490000700195022001400202       1955                            d  c1955 Mar10aleprosy10aNiacin10aNicotinic Acids1 aNAVARRO MARTIN A00a[Autochthonous case of leprosy in the province of Santander].  a525-90 v46  a0001-7310