function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bandyopadhyay, Probir K. & Mitra, Amlan Kumar & Bhowmik, Biplab', 1],
    ['Bandyopadhyay, Probir K. & Mitra, Amlan Kumar & Göçmen, Bayram', 2],
    ['Clopton, R. E. & Percival, T. J. & Janovy Jr, John', 1],
    ['Clopton, Richard E.', 1],
    ['Hoshide, Kazumi & Sacho, Kazumi', 1],
    ['Malloch, John Russell', 1],
    ['Nagasawa, Kazuya', 1],
    ['Nagasawa, Kazuya & Nitta, Masato', 1],
    ['Ranjbar, Massoud & Ranjbar, Zahra', 1],
    ['Reich, Dieter & Gutermann, Walter & Bardy, Katharina', 3],
    ['Reschke, Kai & Lotz-Winter, Hermine & Fischer, Christian W.', 1],
    ['Rueckert, Sonja & Simdyanov, Timur G. & Aleoshin, Vladimir V.', 1],
    ['Sarkar, Sutapa & Bandyopadhyay, Probir K.', 22],
    ['Sun, Shichun', 2],
    ['Xue, Xiao-Feng & Song, Zi-Wei & Hong, Xiao-Yue', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);