function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aistleitner, E.', 3],
    ['Aistleitner, Eyjolf', 6],
    ['Balletto, Emilio & Barbero, Francesca & Bonelli, Simona', 1],
    ['Bland, Keith P.', 1],
    ['Bonelli, Simona & Barbero, Francesca & Casacci, Luca Pietro', 7],
    ['Das, Gaurab Nandi & Eitschberger, Ulf & Singh, Navneet', 7],
    ['Della Rocca, Francesca & Stefanelli, Silvia & Cardarelli, Elisa', 1],
    ['Edwards, William H.', 1],
    ['Franeta, Filip', 1],
    ['Ge, Si Xun & Jiang, Zhuo Heng & Wang, Jia Qi & Song, Kui', 19],
    ['Irungbam, Jatishwor Singh & Meitei, Laishram Ricky', 2],
    ['Khudhur, Farhad A.', 4],
    ['Lamas, Gerardo', 1],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 2],
    ['Zahiri, Reza & Nazari, Vazrick & Rajaei, Hossein', 6],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=65)',
    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);