function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allen, Timothy Field', 2],
    ['Chakrabarty, Tapas & Bandyopadhyay, Subir', 1],
    ['Huang, Yu-Song & Qin, Kun & Tan, Hai-Ming & Zou, Chun-Yu', 1],
    ['Komada, Natsuki & Tagane, Shuichiro & Matsuo, Ayumi', 1],
    ['Kostermans, Andre Joseph Guillaume Henri', 8],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 1],
    ['Quang, Bui Hong & Tagane, Shuichiro & Viet, Hung Nguyen', 1],
    ['Santamaría-Aguilar, Daniel & Fernández, Reinaldo Aguilar', 1],
    ['Teschner, Hans', 9],
    ['Werff, Henk van der', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);