function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['As, Johann Van & Davies, Angela J. & Smit, Nico J.', 1],
    ['Bandyopadhyay, Probir K. & Mitra, Amlan Kumar & Bhowmik, Biplab', 1],
    ['Clopton, Richard E.', 1],
    ['Hoshide, Kazumi & Sacho, Kazumi', 1],
    ['Malloch, John Russell', 1],
    ['Mantilla, Juan S. & Gonzalez, Angie D. & Valkiūnas, Gediminas', 1],
    ['Netherlands, Edward C. & Cook, Courtney A. & Smit, Nico J.', 1],
    ['Rueckert, Sonja & Simdyanov, Timur G. & Aleoshin, Vladimir V.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=8)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);