function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Camacho, A. I. & Brancelj, A. & Dorda, B. A. & Casado, A.', 5],
    ['Camacho, A. I. & Hancock, P.', 10],
    ['Camacho, A. I. & Mas-Peinado, P. & Hutchins, B. T.', 6],
    ['Camacho, A. I. & Serban, E. & Guil, N.', 3],
    ['Camacho, Ana Isabel', 8],
    ['Cho, Joo-Lae & Humphreys, W. F.', 11],
    ['Cho, Joo-Lae & Park, Jong-Geun & Humphreys, W. F.', 7],
    ['Cho, Joo-Lae & Park, Jong-Geun & Reddy, Y. Ranga', 3],
    ['Cho, Joo-Lae & Schminke, Horst Kurt', 10],
    ['Hong, Sungwon J. & Cho, Joo-Lae', 4],
    ['Park, Jong-Geun', 4],
    ['Park, Jong-Geun & Cho, Joo-Lae', 8],
    ['Reddy, Yenumula Ranga & Totakura, Venkateswara Rao', 4],
    ['Schminke, Horst Kurt', 6],
    ['Totakura, Venkateswara Rao & Reddy, Yenumula Ranga', 3],
    ['Other (18)', 29]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=121)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);