function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akazaki, M.', 1],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 8],
    ['Bogorodsky, Sergey V. & Alpermann, Tilman J. & Mal, Ahmad O.', 3],
    ['De Vis, Charles Walter', 1],
    ['Du, Jianguo & Loh, Kar-Hoe & Hu, Wenjia & Zheng, Xinqing', 8],
    ['Golani, Daniel & Bogorodsky, Sergey V.', 1],
    ['Günther, Albert Charles Lewis Gotthilf', 1],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 1],
    ['Jordan, David Starr & Richardson, R. E.', 1],
    ['Jordan, David Starr & Seale, A.', 1],
    ['Nakamura, Jumpei & Bearez, Philippe & Motomura, Hiroyuki', 1],
    ['Nakamura, Jumpei & Russell, Barry C. & Moore, Glenn I.', 1],
    ['Rao, D. M. & Rao, K. S.', 2],
    ['Russell, Barry C. & Bogorodsky, Sergey V. & Mal, Ahmad O.', 4],
    ['Weber, M.', 2],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    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);