function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ang, Yuchen & Meier, Rudolf', 5],
    ['Ang, Yuchen & Rajaratnam, Gowri & Su, Kathy FY & Meier, Rudolf', 1],
    ['Ang, Yuchen & Rohner, Patrick Thomas & Meier, Rudolf', 2],
    ['Ang, Yuchen & Wong, Ling Jing & Meier, Rudolf', 1],
    ['Bächli, Gerhard & Merz, Bernhard & Haenni, Jean-Paul', 2],
    ['El-Hawagry, Magdi S. & Abdel-Dayem, Mahmoud S.', 2],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 3],
    ['Li, Xuankun & Yang, Ding', 8],
    ['Ozerov, A. L.', 5],
    ['Patrick T. Rohner & Gerhard Bächli', 30],
    ['Schlüsslmayr, Gerhard', 5],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 6],
    ['Silva, Vera C. & Pollet, Marc', 13],
    ['Silva, Vera Cristina', 14],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 2],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=105)',
    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);