function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bezděk, Aleš & Hájek, Jiří', 15],
    ['Boni, M.', 31],
    ['Breteler, F. J.', 47],
    ['Calder, Dale R.', 4],
    ['Gomez-Zapata, Paula Andrea & Haelewaters, Danny & Quijada, Luis', 4],
    ['Johnston, Peter R. & Park, Duckchul & Baral, Hans-Otto', 12],
    ['Johnston, Peter R. & Park, Duckchul & Smith, Matthew E.', 9],
    ['Kusan, Ivana & Matocec, Neven & Jadan, Margita & Tkalcec, Zdenko', 6],
    ['Li, Cui-Jin-Yi & Thilini Chethana, Kandawatte Wedaralalage', 5],
    ['Raposeiro, Pedro M. & Faustino, Helder & Ferreira, Veronica', 11],
    ['Tochihara, Yukito & Hosoya, Tsuyoshi', 8],
    ['Wijayawardene, Nalin N. & Dai, Dong-Qin & Premarathne, Bhagya M.', 47],
    ['Zhang, Jin-Feng & Liu, Jian-Kui & Hyde, Kevin D.', 4],
    ['Zhang, Zhi-Yuan & Li, Xin & Chen, Wan-Hao & Liang, Jian-Dong', 5],
    ['Zheng, Huan-Di & Zhuang, Wen-Ying', 5],
    ['Other (54)', 89]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=302)',
    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);