function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bandyopadhyay, Pritha & Karmakar, Krishna & Halliday, Bruce', 8],
    ['Bolger, Thomas & Arroyo, Julio & Piotrowska, Katarzyna', 5],
    ['De Moraes, Gilberto J. & Britto, Erika P. J.', 2],
    ['Ebrahimi, Najmeh & Noei, Javad', 2],
    ['Halliday, R. B.', 5],
    ['Joharchi, Omid & Halliday, Bruce', 15],
    ['Joharchi, Omid & Ostovan, Hadi & Babaeian, Esmaeil', 3],
    ['Joharchi, Omid & Ramroodi, Sara & Halliday, Bruce', 3],
    ['Joharchi, Omid & Shahedi, Alireza', 2],
    ['Keum, Eunsun & Jung, Chuleui & Joharchi, Omid', 2],
    ['Khalili-Moghadam, A. & Saboori, A.', 2],
    ['LIU, DONG & YI, TIAN-CI & XU, YUN & ZHANG, ZHI-QIANG', 3],
    ['Lin, Jian-Zhen', 20],
    ['Saboori, Alireza & Shirvani, Zeinab', 6],
    ['Trach, V. A. & Joharchi, O.', 5],
    ['Other (7)', 9]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=92)',
    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);