title: Using sildenafil (viagra) to treat congenital lymphatic malformations of the head and neck, our experience.
authors.affiliation: Red Cross Children's Hospital, The University of Cape Town, South Africa. Electronic address: johnpjrocke@gmail.com.
authors.forename: John
authors.initials: J
authors.lastname: Rocke
authors.affiliation: Red Cross Children's Hospital, The University of Cape Town, South Africa.
authors.forename: Gavin
authors.initials: G
authors.lastname: Quail
authors.affiliation: Red Cross Children's Hospital, The University of Cape Town, South Africa.
authors.forename: Graeme
authors.initials: G
authors.lastname: Copley