function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahad, Sumaya & Ahmad, Wasim', 18],
    ['Ahmad, Wasim & Naz, Tabbasam', 19],
    ['Andrássy, István', 16],
    ['Arai, Hisao P. & Smith, John W.', 22],
    ['Armenteros, Maickel & Ruiz-Abierno, Alexei & Decraemer, Wilfrida', 19],
    ['Gusakov, Vladimir A. & Gagarin, Vladimir G.', 36],
    ['Holovachov, Oleksandr', 54],
    ['Holovachov, Oleksandr & Boström, Sven', 48],
    ['Islam, Md Niraul & Ahmad, Wasim', 18],
    ['Leduc, Daniel', 107],
    ['Leduc, Daniel & Zhao, Zeng Qi & Sinniger, Frederic', 23],
    ['Shimada, Daisuke', 90],
    ['Tchesunov, Alexei V.', 21],
    ['Venekey, Virág & Fonseca-Genevois, Verônica G.', 19],
    ['Zhao, Zeng Qi', 25],
    ['Other (239)', 942]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1477)',
    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);