RT Journal Article SR Electronic T1 Valvular heart disease and pregnancy part II: management of prosthetic valves JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 244 OP 252 DO 10.1136/heartjnl-2015-308199 VO 103 IS 3 A1 Catriona J Bhagra A1 Rohan D'Souza A1 Candice K Silversides YR 2017 UL http://heart.bmj.com/content/103/3/244.abstract AB