function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bubner, Ben & Buchheit, Ramona & Friedrich, Frank', 17],
    ['Hernandez, J. R. & Piepenbring, M. & Rios, M. B. V.', 1],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 1],
    ['Padamsee, Mahajabeen & Mckenzie, Eric H. C.', 1],
    ['Wang, Lei & Liu, Shi-Tong & Liu, Yun & Liang, Ying-Mei', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);