function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baur, Hannes', 5],
    ['Dale-Skey, Natalie & Askew, Richard R. & Noyes, John S.', 22],
    ['Ghahari, H. & Dzhanokmen, K. A. & Doğanlar, M.', 1],
    ['Lotfalizadeh, Hossein & Karimpour, Younes & Delvare, Gérard', 1],
    ['Shojaey, M. & Khayrandish, M. & Madjdzadeh, S. M.', 1],
    ['Tselikh, E. V.', 3],
    ['Tselikh, E. V. & Lee, J. & Ku, D-S.', 2],
    ['Xiao, Hui & Zhang, Yan-Zhou & Huang, Da-Wei & Polaszek, Andrew', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=46)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);