function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ball, E. D.', 8],
    ['Chen, Fangying & Dai, Wu', 4],
    ['Chen, Fangying & Dai, Wu & Zhang, Yalin', 10],
    ['Dmitriev, Dmitry', 2],
    ['Dmitriev, Dmitry A. & Li, Zizhong & Dai, Renhuai & Xing, Jichun', 2],
    ['Fletcher, Murray J. & Semeraro, Linda', 2],
    ['Freytag, Paul H', 42],
    ['Guglielmino, A. & Olmi, M.', 1],
    ['Kamitani, Satoshi & Hayashi, Masami', 6],
    ['Khatri, Imran & Webb, Michael D.', 1],
    ['Rajgopal, N. N. & Dey, Debjani', 2],
    ['Viraktamath, C. A. & Mohan, G. S.', 34],
    ['Webb, M. D. & Viraktamath, C. A.', 6],
    ['Wen, Chao & Chen, Fangying & Dai, Wu', 17],
    ['Yang, Lin & Chen, Xiang-Sheng & Li, Zi-Zhong', 8],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=148)',
    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);