Authors: H Vetter; G Brecht; M Fischer; M Galanski; K Glänzer; B M Cramer; G Pouliadis; G Sialer; A Studer; W Tenschert; S Wollnik; H Zumkley; W Vetter Journal: Klin Wochenschr Date: 1980-10-15
Authors: H Kehlet; M Blichert-Toft; S Hancke; J F Pedersen; J K Kristensen; F Efsen; H D Petersen; J Fogh; K Lockwood; E Hasner Journal: Br Med J Date: 1976-09-18