progesterone

Preparation of the endometrium and timing of blastocyst transfer in modified natural cycle frozen-thawed embryo transfers (mNC-FET): a study protocol for a randomised controlled multicentre trial
Marte Saupstad, Nina La Cour Freiesleben, Sven Olaf Skouby, Lars Franch Andersen, Ulla Breth Knudsen, Kathrine Birch Petersen, Merete Husth, Anne Egeberg, Morten Rønn Petersen, Søren Ziebe, Anders Nyboe Andersen, Kristine Løssl, Anja Pinborg

BMJ Open Dec 2019, 9 (12) e031811; DOI: 10.1136/bmjopen-2019-031811
Exogenous sex steroid hormones and asthma in females: protocol for a population-based retrospective cohort study using a UK primary care database
Bright I Nwaru, Colin R Simpson, Ireneous N Soyiri, Rebecca Pillinger, Francis Appiagyei, Dermot Ryan, Hilary Critchley, David B Price, Catherine M Hawrylowicz, Aziz Sheikh

BMJ Open Jun 2018, 8 (6) e020075; DOI: 10.1136/bmjopen-2017-020075
Periconception endogenous and exogenous maternal sex steroid hormones and risk of asthma and allergy in offspring: protocol for a systematic review and meta-analysis
Merhunisa Talovic, Aziz Sheikh, Nicola McCleary, Maijaliisa Erkkola, Minna Kaila, Suvi M Virtanen, Bright I Nwaru

BMJ Open Jul 2017, 7 (7) e014637; DOI: 10.1136/bmjopen-2016-014637

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progesterone