function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bakhit, Mahmoud S. & Abdel-Wahab, Mohamed A.', 2],
    ['Beer, Z. Wilhelm de & Marincowitz, Seonju & Duong, Tuan A.', 2],
    ['Calabon, Mark S. & Jones, E. B. Gareth & Pang, Ka-Lai', 6],
    ['Cotton, Adam M. & Doleck, Tenzing & Zhang, Xin', 5],
    ['Danylyk, Ivan M. & Koopman, Jacob', 1],
    ['Lavesque, Nicolas & Daffe, Guillemine & Londoño-Mesa, Mario H.', 2],
    ['Liu, FeiFei & Marincowitz, Seonju & Chen, ShuaiFei', 2],
    ['Martin, Patrick & Schmelz, Rüdiger M. & Dole-Olivier, Marie-José', 1],
    ['Miquel, Sergio E. & Herrera, Henri W.', 1],
    ['Noble, Paula & Aitchison, Jonathan C. & Danelian, Taniel', 1],
    ['Nourel-Din, Ali A. H. & Abdel-Aziz, Faten A.', 2],
    ['Raposeiro, Pedro M. & Faustino, Helder & Ferreira, Veronica', 1],
    ['Sidat, Azaz & Bhatt, Urjit', 2],
    ['Tian, Xingguo & Tibpromma, Saowaluck & Karunarathna, Samantha C.', 2],
    ['Wijayawardene, Nalin N. & Dai, Dong-Qin & Premarathne, Bhagya M.', 6],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);