function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Davies, Gregory B. P. & Miller, Raymond M.', 20],
    ['Gao, Caixia & Yang, Ding', 16],
    ['Gao, Xuefeng & Shi, Li', 12],
    ['Li, Wenliang & Bai, Yingming & Yang, Ding', 20],
    ['Li, Wenliang & Yang, Ding', 16],
    ['Merz, B. & Kofler, A.', 30],
    ['Semelbauer, Marek & Kozánek, Milan', 23],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 23],
    ['Shen, Rongrong & Shi, Li & Li, Wenliang & Wang, Junchao', 21],
    ['Shi, Li & Gaimari, Stephen D. & Yang, Ding', 34],
    ['Shi, Li & Yang, Ding', 92],
    ['Shi, Li & Yang, Ding & Gaimari, Stephen D.', 12],
    ['Silva, Vera Cristina', 72],
    ['V, Marco', 21],
    ['White, Ian M. & Goodger, Kim F. M.', 54],
    ['Other (61)', 220]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=686)',
    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);