Complex sentence: In 1942, "Childbirth without Fear" was published; it was a book written by English obstetrician Grantly Dick-Read and French obstetrician Michel Odent, that introduced the idea of using hypnotherapy for childbirth.
Split into simpler sentences: In 1942, "Childbirth without Fear" was published; written by English obstetrician Grantly Dick-Read. The book introduced the idea of using hypnotherapy for childbirth.