function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bezděk, Jan', 2],
    ['Ekiz, Ali Nafiz & Şen, İsmail & Aslan, Ebru Gül & Gök, Ali', 1],
    ['Faisal, Mohammad & Singh, Sudhir', 1],
    ['Johnston, M. Andrew & Waite, Evan S. & Wright, Ethan R', 1],
    ['Tracy, James L. & Robbins, Thomas O.', 10],
    ['Viswajyothi, Keezhpattillam & Clark, Shawn M.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);