function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barabanov, Andrei & Milto, Konstantin', 1],
    ['Castiglia, Riccardo & Flores-Villela, Oscar Alberto', 2],
    ['Grismer, L. Lee & Neang, Thy & Chav, Thou & Wood, Perry L. & Jr', 1],
    ['Grismer, L. Lee & Quah, Evan S. H.', 1],
    ['Jones, Dillon & Foshee, Bethany & Fitzgerald, Lee', 1],
    ['Koizumi, Yuki & Ota, Hidetoshi & Hikida, Tsutomu', 1],
    ['Linkem, Charles W. & Diesmos, Arvin C. & Brown, Rafe M.', 1],
    ['Nguyen, Sang Ngoc & Nguyen, Vu Dang Hoang & Nguyen, Luan Thanh', 2],
    ['Pham, Anh Van & Le, Dzung Trung & Nguyen, Son Lan Hung', 6],
    ['Pham, Anh Van & Pham, Cuong The & Le, Minh Duc & Ngoc, Hai Ngo', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    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);