function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Buchannan, Francis', 1],
    ['Dayrat, Benoit & Goulding, Tricia C. & Apte, Deepak', 14],
    ['Dayrat, Benoit & Goulding, Tricia C. & Khalil, Munawar', 6],
    ['Dayrat, Benoît & Goulding, Tricia C. & Apte, Deepak', 5],
    ['Dayrat, Benoît & Goulding, Tricia C. & Bourke, Adam J.', 5],
    ['Dayrat, Benoît & Goulding, Tricia C. & Khalil, Munawar', 9],
    ['Dayrat, Benoît & Zimmermann, Sara & Raposa, Melissa', 9],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 1],
    ['Goulding, Tricia C. & Bourke, Adam J. & Comendador, Joseph', 12],
    ['Goulding, Tricia C. & Khalil, Munawar & Tan, Shau Hwai', 13],
    ['Goulding, Tricia C. & Tan, Shau-hwai Aileen & Tan, Siong Kiat', 1],
    ['Maniei, Fatemeh & Espeland, Marianne & Movahedi, Mohammad', 2],
    ['Sreeraj, Chemmencheri Ramakrishnan & Raghunathan, Chelladurai', 2],
    ['Zvonareva, Sofya & Kantor, Yuri', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=87)',
    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);