Authors:
Gnoth, C
Bremme, M
Klemm, R
Frank-Herrmann, P
Godehardt, E
Freundl, G
Citation: C. Gnoth et al., Research and quality control in natural family planning with relational database systems, ADV CONTRAC, 15(4), 1999, pp. 375-380
Citation: G. Freundl et al., Results of an efficacy-finding study (EFS) with the computer-thermometer Cyclotest 2 plus containing 207 cycles, ADV CONTRAC, 14(4), 1998, pp. 201-207