function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al-Aidaroos, Ali M. & Salama, Adnan J. & El-Sherbiny, Mohsen M.', 1],
    ['Brady, George Stewardson', 5],
    ['Dana, James Dwight', 1],
    ['El-Sherbiny, Mohsen M. & Al-Harbi, Mamdouh A.', 1],
    ['Hirabayashi, Takeshi & Ohtsuka, Susumu', 1],
    ['Jeong, Hyeon Gyeong & Soh, Ho Young & Suh, Hae-Lip', 1],
    ['Kaneko, Naoki & Wada, Kaoru', 1],
    ['Sidabalok, Conni M.', 3],
    ['Suarez-Morales, Eduardo & Kozak, Eva', 1],
    ['Suárez-Morales, Eduardo & Esquivel Garrote, Octavio', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    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);