function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Blake, James A.', 25],
    ['Dean, Harlan K. & Blake, James A.', 3],
    ['Faulwetter, Sarah & Simboura, Nomiki & Katsiaras, Nikolaos', 2],
    ['Garcia-Garza, Maria Elena & de Leon-Gonzalez, Jesus Angel', 1],
    ['Gunton, Laetitia M. & Kupriyanova, Elena K. & Alvestad, Tom', 5],
    ['Neal, Lenka & Paterson, Gordon L. J. & Blockley, David', 1],
    ['Tasso, Vicente & El Haddad, Mustapha & Assadi, Carolina', 2],
    ['Zhadan, Anna', 4],
    ['Zhadan, Anna & Stupnikova, Alexandra & Neretina, Tatiana', 2],
    ['Çinar, Melih Ertan & Dağli, Ertan & Erdoğan-Dereli, Deniz', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=46)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);