function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barrion, A. T. & Litsinger, J. A.', 1],
    ['Bastawade', 1],
    ['Bastawade, D. B.', 1],
    ['Biswas, B. & Biswas, K', 3],
    ['Biswas, B. & Majumder, S. C.', 2],
    ['Chen, Shyh-Hwan & Huang, Wen-Juen', 1],
    ['Chu, Chang & Lu, Ying & Li, Shuqiang & Yao, Zhiyuan', 2],
    ['Deeleman-Reinhold, Christa', 6],
    ['Lin, Yejie & Li, Shuqiang & Pham, Dinh-Sac', 2],
    ['Lu, Ying & Chu, Chang & Li, Shuqiang & Yao, Zhiyuan', 3],
    ['Norma-Rashid, Y. & Li, Daiqin', 1],
    ['Reddy, T. S. & Patel, B. H.', 1],
    ['Saaristo, Michael I.', 2],
    ['Sankaran, Pradeep M. & Caleb, John T. D.', 1],
    ['Tso, I-Min & Zhu, Ming-Sheng & Zhang, Jun-Xia & Zhang, Feng', 2],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    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);