TY  - GEN
AU  - van Wingerden,J J
TI  - Umbilicated or retractile nipples?
SN  - 0032-1052
PY  - 1999///0616
KW  - Humans
KW  - Nipples
KW  - abnormalities
N1  - Publication Type: Comment; Letter
UR  - https://doi.org/10.1097/00006534-199906000-00060
ER  -