function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Askew, Richard R. & Melika, George & Pujade-Villar, Juli', 7],
    ['Baur, Hannes', 1],
    ['Cao, Huan-Xi & Salle, John La & Zhu, Chao-Dong', 45],
    ['Dale-Skey, Natalie & Askew, Richard R. & Noyes, John S.', 62],
    ['Dawah, H. A. & Al-Haddad, F. H. & Jervis, M. A.', 1],
    ['Gadallah, Neveen S. & Yefremova, Zoya A.', 5],
    ['Gumovsky, Alex', 18],
    ['Hansson, Christer', 1],
    ['Kosheleva, O. V.', 15],
    ['Mifsud, David & Askew, Richard R.', 1],
    ['Pérez-Benavides, A. Lucía & Hernández-Baz, Fernando', 1],
    ['Taveras, Rosina & Hansson, Christer', 1],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 1],
    ['Yefremova, Zoya A.', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=173)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);